./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:15:16,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:15:16,865 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-01 23:15:16,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:15:16,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:15:16,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:15:16,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:15:16,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:15:16,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:15:16,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:15:16,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:15:16,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:15:16,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:15:16,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:15:16,894 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:15:16,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:15:16,895 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:15:16,895 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:15:16,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:15:16,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:15:16,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:15:16,897 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2024-12-01 23:15:17,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:15:17,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:15:17,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:15:17,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:15:17,149 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:15:17,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-12-01 23:15:19,823 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/data/51e727730/190a46be5cac45e2853bad5b0c1b9c2f/FLAG3816e7c5d [2024-12-01 23:15:20,266 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:15:20,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-12-01 23:15:20,297 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/data/51e727730/190a46be5cac45e2853bad5b0c1b9c2f/FLAG3816e7c5d [2024-12-01 23:15:20,369 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/data/51e727730/190a46be5cac45e2853bad5b0c1b9c2f [2024-12-01 23:15:20,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:15:20,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:15:20,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:15:20,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:15:20,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:15:20,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:15:20" (1/1) ... [2024-12-01 23:15:20,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b27af6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:20, skipping insertion in model container [2024-12-01 23:15:20,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:15:20" (1/1) ... [2024-12-01 23:15:20,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:15:22,234 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2024-12-01 23:15:22,236 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2024-12-01 23:15:22,237 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2024-12-01 23:15:22,237 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2024-12-01 23:15:22,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:15:22,283 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:15:22,346 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"); [5242] [2024-12-01 23:15:22,347 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)); [5249] [2024-12-01 23:15:22,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5256] [2024-12-01 23:15:22,349 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)); [5293-5294] [2024-12-01 23:15:22,349 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"); [5299-5301] [2024-12-01 23:15:22,355 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)); [5454-5455] [2024-12-01 23:15:22,357 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)); [5488-5489] [2024-12-01 23:15:22,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7248] [2024-12-01 23:15:22,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7500] [2024-12-01 23:15:22,609 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2024-12-01 23:15:22,610 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2024-12-01 23:15:22,610 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2024-12-01 23:15:22,610 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_fa96198d-663d-4c6c-b86e-738375bb7b02/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2024-12-01 23:15:22,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:15:22,779 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:15:22,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22 WrapperNode [2024-12-01 23:15:22,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:15:22,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:15:22,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:15:22,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:15:22,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:22,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:22,982 INFO L138 Inliner]: procedures = 411, calls = 1715, calls flagged for inlining = 195, calls inlined = 178, statements flattened = 4739 [2024-12-01 23:15:22,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:15:22,982 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:15:22,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:15:22,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:15:22,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:22,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,006 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,818 INFO L175 MemorySlicer]: Split 777 memory accesses to 14 slices as follows [631, 8, 8, 1, 2, 55, 5, 5, 52, 1, 3, 2, 2, 2]. 81 percent of accesses are in the largest equivalence class. The 52 initializations are split as follows [22, 8, 8, 1, 2, 0, 5, 5, 0, 0, 1, 0, 0, 0]. The 402 writes are split as follows [302, 0, 0, 0, 0, 55, 0, 0, 42, 0, 0, 1, 1, 1]. [2024-12-01 23:15:23,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,922 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,932 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:23,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:24,018 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:15:24,019 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:15:24,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:15:24,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:15:24,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (1/1) ... [2024-12-01 23:15:24,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:15:24,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:15:24,048 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:15:24,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa96198d-663d-4c6c-b86e-738375bb7b02/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-12-01 23:15:24,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-12-01 23:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-01 23:15:24,073 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-01 23:15:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-12-01 23:15:24,073 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-12-01 23:15:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-12-01 23:15:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2024-12-01 23:15:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2024-12-01 23:15:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2024-12-01 23:15:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-01 23:15:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-12-01 23:15:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-01 23:15:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-01 23:15:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-01 23:15:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2024-12-01 23:15:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2024-12-01 23:15:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2024-12-01 23:15:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2024-12-01 23:15:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-01 23:15:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-01 23:15:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-01 23:15:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-01 23:15:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-01 23:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-12-01 23:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-12-01 23:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-12-01 23:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-12-01 23:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-12-01 23:15:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-12-01 23:15:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-01 23:15:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-01 23:15:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-01 23:15:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-12-01 23:15:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-01 23:15:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-01 23:15:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-12-01 23:15:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-12-01 23:15:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2024-12-01 23:15:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:15:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2024-12-01 23:15:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2024-12-01 23:15:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-01 23:15:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-12-01 23:15:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2024-12-01 23:15:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-01 23:15:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-12-01 23:15:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2024-12-01 23:15:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2024-12-01 23:15:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-01 23:15:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-12-01 23:15:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-01 23:15:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2024-12-01 23:15:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2024-12-01 23:15:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-01 23:15:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2024-12-01 23:15:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-01 23:15:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-01 23:15:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-01 23:15:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-01 23:15:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-01 23:15:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-12-01 23:15:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-12-01 23:15:24,751 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:15:24,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:15:25,194 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-01 23:15:37,639 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-12-01 23:15:38,255 INFO L? ?]: Removed 2237 outVars from TransFormulas that were not future-live. [2024-12-01 23:15:38,255 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:15:38,289 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:15:38,289 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 23:15:38,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:15:38 BoogieIcfgContainer [2024-12-01 23:15:38,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:15:38,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:15:38,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:15:38,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:15:38,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:15:20" (1/3) ... [2024-12-01 23:15:38,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f438fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:15:38, skipping insertion in model container [2024-12-01 23:15:38,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:15:22" (2/3) ... [2024-12-01 23:15:38,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f438fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:15:38, skipping insertion in model container [2024-12-01 23:15:38,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:15:38" (3/3) ... [2024-12-01 23:15:38,297 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-12-01 23:15:38,308 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:15:38,310 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i that has 96 procedures, 1880 locations, 1 initial locations, 28 loop locations, and 3 error locations. [2024-12-01 23:15:38,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:15:38,391 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=PETRI_NET, 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;@4630ae7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:15:38,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-01 23:15:38,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 1813 states, 1299 states have (on average 1.3287143956889915) internal successors, (1726), 1322 states have internal predecessors, (1726), 430 states have call successors, (430), 82 states have call predecessors, (430), 81 states have return successors, (424), 418 states have call predecessors, (424), 424 states have call successors, (424) [2024-12-01 23:15:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-12-01 23:15:38,411 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:38,412 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1] [2024-12-01 23:15:38,412 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)] === [2024-12-01 23:15:38,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:38,416 INFO L85 PathProgramCache]: Analyzing trace with hash -350460708, now seen corresponding path program 1 times [2024-12-01 23:15:38,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:38,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080782527] [2024-12-01 23:15:38,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:38,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-12-01 23:15:44,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:44,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080782527] [2024-12-01 23:15:44,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080782527] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:44,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:44,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:15:44,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020979820] [2024-12-01 23:15:44,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:44,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:44,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:44,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:44,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:44,129 INFO L87 Difference]: Start difference. First operand has 1813 states, 1299 states have (on average 1.3287143956889915) internal successors, (1726), 1322 states have internal predecessors, (1726), 430 states have call successors, (430), 82 states have call predecessors, (430), 81 states have return successors, (424), 418 states have call predecessors, (424), 424 states have call successors, (424) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-12-01 23:15:48,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:15:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:48,940 INFO L93 Difference]: Finished difference Result 5280 states and 7706 transitions. [2024-12-01 23:15:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:48,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 127 [2024-12-01 23:15:48,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:48,973 INFO L225 Difference]: With dead ends: 5280 [2024-12-01 23:15:48,973 INFO L226 Difference]: Without dead ends: 3480 [2024-12-01 23:15:48,985 INFO L434 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 [2024-12-01 23:15:48,987 INFO L435 NwaCegarLoop]: 2566 mSDtfsCounter, 2413 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 5039 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:48,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 5039 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-01 23:15:49,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2024-12-01 23:15:49,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3476. [2024-12-01 23:15:49,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3476 states, 2512 states have (on average 1.3085191082802548) internal successors, (3287), 2557 states have internal predecessors, (3287), 803 states have call successors, (803), 159 states have call predecessors, (803), 158 states have return successors, (799), 787 states have call predecessors, (799), 799 states have call successors, (799) [2024-12-01 23:15:49,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 4889 transitions. [2024-12-01 23:15:49,195 INFO L78 Accepts]: Start accepts. Automaton has 3476 states and 4889 transitions. Word has length 127 [2024-12-01 23:15:49,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:49,196 INFO L471 AbstractCegarLoop]: Abstraction has 3476 states and 4889 transitions. [2024-12-01 23:15:49,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-12-01 23:15:49,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3476 states and 4889 transitions. [2024-12-01 23:15:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-01 23:15:49,200 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:49,200 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1] [2024-12-01 23:15:49,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:15:49,201 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)] === [2024-12-01 23:15:49,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:49,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1917619709, now seen corresponding path program 1 times [2024-12-01 23:15:49,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:49,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201820525] [2024-12-01 23:15:49,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:49,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:15:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:15:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-12-01 23:15:54,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:15:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201820525] [2024-12-01 23:15:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201820525] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:15:54,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:15:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:15:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305586339] [2024-12-01 23:15:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:15:54,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:15:54,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:15:54,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:15:54,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:15:54,178 INFO L87 Difference]: Start difference. First operand 3476 states and 4889 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-01 23:15:58,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:15:59,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:15:59,082 INFO L93 Difference]: Finished difference Result 10282 states and 14479 transitions. [2024-12-01 23:15:59,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:15:59,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2024-12-01 23:15:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:15:59,132 INFO L225 Difference]: With dead ends: 10282 [2024-12-01 23:15:59,132 INFO L226 Difference]: Without dead ends: 6829 [2024-12-01 23:15:59,150 INFO L434 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 [2024-12-01 23:15:59,151 INFO L435 NwaCegarLoop]: 2559 mSDtfsCounter, 2466 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2466 SdHoareTripleChecker+Valid, 5028 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:15:59,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2466 Valid, 5028 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-12-01 23:15:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2024-12-01 23:15:59,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 6799. [2024-12-01 23:15:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6799 states, 4934 states have (on average 1.3115119578435346) internal successors, (6471), 5028 states have internal predecessors, (6471), 1551 states have call successors, (1551), 316 states have call predecessors, (1551), 311 states have return successors, (1553), 1510 states have call predecessors, (1553), 1547 states have call successors, (1553) [2024-12-01 23:15:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6799 states to 6799 states and 9575 transitions. [2024-12-01 23:15:59,506 INFO L78 Accepts]: Start accepts. Automaton has 6799 states and 9575 transitions. Word has length 131 [2024-12-01 23:15:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:15:59,507 INFO L471 AbstractCegarLoop]: Abstraction has 6799 states and 9575 transitions. [2024-12-01 23:15:59,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-01 23:15:59,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6799 states and 9575 transitions. [2024-12-01 23:15:59,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-01 23:15:59,509 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:15:59,510 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1] [2024-12-01 23:15:59,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:15:59,510 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)] === [2024-12-01 23:15:59,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:15:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1799052014, now seen corresponding path program 1 times [2024-12-01 23:15:59,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:15:59,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822029912] [2024-12-01 23:15:59,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:15:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-12-01 23:16:04,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822029912] [2024-12-01 23:16:04,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822029912] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:04,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:04,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:04,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987255353] [2024-12-01 23:16:04,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:04,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:04,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:04,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:04,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:04,769 INFO L87 Difference]: Start difference. First operand 6799 states and 9575 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-12-01 23:16:08,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:16:09,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:09,666 INFO L93 Difference]: Finished difference Result 19521 states and 27407 transitions. [2024-12-01 23:16:09,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:09,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 131 [2024-12-01 23:16:09,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:09,751 INFO L225 Difference]: With dead ends: 19521 [2024-12-01 23:16:09,751 INFO L226 Difference]: Without dead ends: 12745 [2024-12-01 23:16:09,775 INFO L434 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 [2024-12-01 23:16:09,776 INFO L435 NwaCegarLoop]: 2577 mSDtfsCounter, 2213 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 5038 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:09,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2213 Valid, 5038 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-01 23:16:09,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12745 states. [2024-12-01 23:16:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12745 to 12711. [2024-12-01 23:16:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12711 states, 9200 states have (on average 1.304891304347826) internal successors, (12005), 9386 states have internal predecessors, (12005), 2899 states have call successors, (2899), 622 states have call predecessors, (2899), 609 states have return successors, (2909), 2810 states have call predecessors, (2909), 2895 states have call successors, (2909) [2024-12-01 23:16:10,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12711 states to 12711 states and 17813 transitions. [2024-12-01 23:16:10,361 INFO L78 Accepts]: Start accepts. Automaton has 12711 states and 17813 transitions. Word has length 131 [2024-12-01 23:16:10,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:10,362 INFO L471 AbstractCegarLoop]: Abstraction has 12711 states and 17813 transitions. [2024-12-01 23:16:10,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2024-12-01 23:16:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 12711 states and 17813 transitions. [2024-12-01 23:16:10,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-12-01 23:16:10,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:10,365 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:10,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:16:10,365 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)] === [2024-12-01 23:16:10,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:10,366 INFO L85 PathProgramCache]: Analyzing trace with hash 168798604, now seen corresponding path program 1 times [2024-12-01 23:16:10,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:10,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113751764] [2024-12-01 23:16:10,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:10,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:15,673 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-12-01 23:16:15,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:15,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113751764] [2024-12-01 23:16:15,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113751764] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:15,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:15,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:15,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946853742] [2024-12-01 23:16:15,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:15,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:15,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:15,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:15,676 INFO L87 Difference]: Start difference. First operand 12711 states and 17813 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-01 23:16:19,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:16:21,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:21,011 INFO L93 Difference]: Finished difference Result 24964 states and 34968 transitions. [2024-12-01 23:16:21,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:21,011 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2024-12-01 23:16:21,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:21,137 INFO L225 Difference]: With dead ends: 24964 [2024-12-01 23:16:21,137 INFO L226 Difference]: Without dead ends: 12276 [2024-12-01 23:16:21,172 INFO L434 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 [2024-12-01 23:16:21,173 INFO L435 NwaCegarLoop]: 2868 mSDtfsCounter, 1732 mSDsluCounter, 2462 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1732 SdHoareTripleChecker+Valid, 5330 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:21,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1732 Valid, 5330 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-01 23:16:21,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12276 states. [2024-12-01 23:16:21,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12276 to 12244. [2024-12-01 23:16:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12244 states, 9014 states have (on average 1.3127357443976038) internal successors, (11833), 9187 states have internal predecessors, (11833), 2607 states have call successors, (2607), 631 states have call predecessors, (2607), 620 states have return successors, (2610), 2518 states have call predecessors, (2610), 2603 states have call successors, (2610) [2024-12-01 23:16:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12244 states to 12244 states and 17050 transitions. [2024-12-01 23:16:21,672 INFO L78 Accepts]: Start accepts. Automaton has 12244 states and 17050 transitions. Word has length 137 [2024-12-01 23:16:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:21,673 INFO L471 AbstractCegarLoop]: Abstraction has 12244 states and 17050 transitions. [2024-12-01 23:16:21,674 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-01 23:16:21,674 INFO L276 IsEmpty]: Start isEmpty. Operand 12244 states and 17050 transitions. [2024-12-01 23:16:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-01 23:16:21,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:21,676 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:21,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:16:21,677 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)] === [2024-12-01 23:16:21,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash 933209158, now seen corresponding path program 1 times [2024-12-01 23:16:21,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:21,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96553479] [2024-12-01 23:16:21,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:21,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:26,727 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-12-01 23:16:26,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:26,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96553479] [2024-12-01 23:16:26,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96553479] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:26,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:26,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:26,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547542526] [2024-12-01 23:16:26,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:26,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:26,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:26,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:26,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:26,729 INFO L87 Difference]: Start difference. First operand 12244 states and 17050 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-01 23:16:30,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:16:31,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:31,964 INFO L93 Difference]: Finished difference Result 31797 states and 44281 transitions. [2024-12-01 23:16:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:31,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 140 [2024-12-01 23:16:31,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:32,031 INFO L225 Difference]: With dead ends: 31797 [2024-12-01 23:16:32,031 INFO L226 Difference]: Without dead ends: 19576 [2024-12-01 23:16:32,057 INFO L434 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 [2024-12-01 23:16:32,058 INFO L435 NwaCegarLoop]: 2545 mSDtfsCounter, 2272 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 5002 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:32,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 5002 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2024-12-01 23:16:32,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19576 states. [2024-12-01 23:16:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19576 to 19545. [2024-12-01 23:16:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19545 states, 14286 states have (on average 1.3082738345233096) internal successors, (18690), 14569 states have internal predecessors, (18690), 4236 states have call successors, (4236), 1042 states have call predecessors, (4236), 1020 states have return successors, (4247), 4071 states have call predecessors, (4247), 4232 states have call successors, (4247) [2024-12-01 23:16:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19545 states to 19545 states and 27173 transitions. [2024-12-01 23:16:32,639 INFO L78 Accepts]: Start accepts. Automaton has 19545 states and 27173 transitions. Word has length 140 [2024-12-01 23:16:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:32,640 INFO L471 AbstractCegarLoop]: Abstraction has 19545 states and 27173 transitions. [2024-12-01 23:16:32,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-01 23:16:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 19545 states and 27173 transitions. [2024-12-01 23:16:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-01 23:16:32,642 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:32,642 INFO L218 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:32,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:16:32,642 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)] === [2024-12-01 23:16:32,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash 386822243, now seen corresponding path program 1 times [2024-12-01 23:16:32,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:32,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692118440] [2024-12-01 23:16:32,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-01 23:16:37,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:37,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692118440] [2024-12-01 23:16:37,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692118440] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:37,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:37,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:37,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969979576] [2024-12-01 23:16:37,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:37,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:37,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:37,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:37,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:37,779 INFO L87 Difference]: Start difference. First operand 19545 states and 27173 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-12-01 23:16:41,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:16:42,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:42,978 INFO L93 Difference]: Finished difference Result 57013 states and 79332 transitions. [2024-12-01 23:16:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:42,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 154 [2024-12-01 23:16:42,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:43,090 INFO L225 Difference]: With dead ends: 57013 [2024-12-01 23:16:43,091 INFO L226 Difference]: Without dead ends: 37491 [2024-12-01 23:16:43,146 INFO L434 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 [2024-12-01 23:16:43,146 INFO L435 NwaCegarLoop]: 2868 mSDtfsCounter, 2477 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 5384 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:43,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 5384 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-01 23:16:43,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37491 states. [2024-12-01 23:16:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37491 to 37433. [2024-12-01 23:16:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37433 states, 27329 states have (on average 1.308609901569761) internal successors, (35763), 27905 states have internal predecessors, (35763), 8142 states have call successors, (8142), 2002 states have call predecessors, (8142), 1959 states have return successors, (8168), 7793 states have call predecessors, (8168), 8138 states have call successors, (8168) [2024-12-01 23:16:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37433 states to 37433 states and 52073 transitions. [2024-12-01 23:16:44,578 INFO L78 Accepts]: Start accepts. Automaton has 37433 states and 52073 transitions. Word has length 154 [2024-12-01 23:16:44,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:44,578 INFO L471 AbstractCegarLoop]: Abstraction has 37433 states and 52073 transitions. [2024-12-01 23:16:44,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-12-01 23:16:44,579 INFO L276 IsEmpty]: Start isEmpty. Operand 37433 states and 52073 transitions. [2024-12-01 23:16:44,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-01 23:16:44,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:44,582 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:16:44,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:16:44,582 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)] === [2024-12-01 23:16:44,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:44,583 INFO L85 PathProgramCache]: Analyzing trace with hash 292148036, now seen corresponding path program 1 times [2024-12-01 23:16:44,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:44,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456923999] [2024-12-01 23:16:44,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:44,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:50,053 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-12-01 23:16:50,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:50,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456923999] [2024-12-01 23:16:50,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456923999] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:50,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:50,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:50,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684842250] [2024-12-01 23:16:50,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:50,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:50,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:50,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:50,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:50,055 INFO L87 Difference]: Start difference. First operand 37433 states and 52073 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-01 23:16:50,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:50,991 INFO L93 Difference]: Finished difference Result 74787 states and 104052 transitions. [2024-12-01 23:16:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:50,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 194 [2024-12-01 23:16:50,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:51,206 INFO L225 Difference]: With dead ends: 74787 [2024-12-01 23:16:51,206 INFO L226 Difference]: Without dead ends: 37433 [2024-12-01 23:16:51,342 INFO L434 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 [2024-12-01 23:16:51,343 INFO L435 NwaCegarLoop]: 2530 mSDtfsCounter, 2492 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:51,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 2530 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:51,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37433 states. [2024-12-01 23:16:52,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37433 to 37433. [2024-12-01 23:16:52,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37433 states, 27329 states have (on average 1.3074389842292071) internal successors, (35731), 27905 states have internal predecessors, (35731), 8142 states have call successors, (8142), 2002 states have call predecessors, (8142), 1959 states have return successors, (8168), 7793 states have call predecessors, (8168), 8138 states have call successors, (8168) [2024-12-01 23:16:52,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37433 states to 37433 states and 52041 transitions. [2024-12-01 23:16:52,722 INFO L78 Accepts]: Start accepts. Automaton has 37433 states and 52041 transitions. Word has length 194 [2024-12-01 23:16:52,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:52,722 INFO L471 AbstractCegarLoop]: Abstraction has 37433 states and 52041 transitions. [2024-12-01 23:16:52,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-01 23:16:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand 37433 states and 52041 transitions. [2024-12-01 23:16:52,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-01 23:16:52,724 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:52,724 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:16:52,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:16:52,724 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)] === [2024-12-01 23:16:52,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:52,725 INFO L85 PathProgramCache]: Analyzing trace with hash 237755138, now seen corresponding path program 1 times [2024-12-01 23:16:52,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:52,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548008464] [2024-12-01 23:16:52,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:52,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-12-01 23:16:58,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:58,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548008464] [2024-12-01 23:16:58,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548008464] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:58,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:58,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:16:58,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707286294] [2024-12-01 23:16:58,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:58,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:16:58,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:58,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:16:58,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:16:58,164 INFO L87 Difference]: Start difference. First operand 37433 states and 52041 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-01 23:16:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:59,085 INFO L93 Difference]: Finished difference Result 74755 states and 103956 transitions. [2024-12-01 23:16:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:16:59,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 194 [2024-12-01 23:16:59,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:59,208 INFO L225 Difference]: With dead ends: 74755 [2024-12-01 23:16:59,208 INFO L226 Difference]: Without dead ends: 37401 [2024-12-01 23:16:59,292 INFO L434 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 [2024-12-01 23:16:59,293 INFO L435 NwaCegarLoop]: 2522 mSDtfsCounter, 2485 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 2522 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:59,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 2522 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:59,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37401 states. [2024-12-01 23:17:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37401 to 37401. [2024-12-01 23:17:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37401 states, 27297 states have (on average 1.3031102318936147) internal successors, (35571), 27873 states have internal predecessors, (35571), 8142 states have call successors, (8142), 2002 states have call predecessors, (8142), 1959 states have return successors, (8168), 7793 states have call predecessors, (8168), 8138 states have call successors, (8168) [2024-12-01 23:17:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37401 states to 37401 states and 51881 transitions. [2024-12-01 23:17:00,412 INFO L78 Accepts]: Start accepts. Automaton has 37401 states and 51881 transitions. Word has length 194 [2024-12-01 23:17:00,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:00,413 INFO L471 AbstractCegarLoop]: Abstraction has 37401 states and 51881 transitions. [2024-12-01 23:17:00,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-01 23:17:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 37401 states and 51881 transitions. [2024-12-01 23:17:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-01 23:17:00,416 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:00,416 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:17:00,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:17:00,416 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)] === [2024-12-01 23:17:00,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1049458046, now seen corresponding path program 1 times [2024-12-01 23:17:00,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:00,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827217306] [2024-12-01 23:17:00,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:00,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-12-01 23:17:04,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:04,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827217306] [2024-12-01 23:17:04,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827217306] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:04,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:04,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:17:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270085719] [2024-12-01 23:17:04,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:04,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:17:04,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:04,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:17:04,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:17:04,748 INFO L87 Difference]: Start difference. First operand 37401 states and 51881 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-01 23:17:08,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:17:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:10,805 INFO L93 Difference]: Finished difference Result 109537 states and 152154 transitions. [2024-12-01 23:17:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:17:10,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 197 [2024-12-01 23:17:10,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:11,054 INFO L225 Difference]: With dead ends: 109537 [2024-12-01 23:17:11,054 INFO L226 Difference]: Without dead ends: 72215 [2024-12-01 23:17:11,151 INFO L434 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 [2024-12-01 23:17:11,151 INFO L435 NwaCegarLoop]: 3501 mSDtfsCounter, 2354 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 6000 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:11,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 6000 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-01 23:17:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72215 states. [2024-12-01 23:17:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72215 to 72211. [2024-12-01 23:17:12,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72211 states, 52851 states have (on average 1.3051219466046053) internal successors, (68977), 53857 states have internal predecessors, (68977), 15586 states have call successors, (15586), 3840 states have call predecessors, (15586), 3771 states have return successors, (15642), 15049 states have call predecessors, (15642), 15582 states have call successors, (15642) [2024-12-01 23:17:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72211 states to 72211 states and 100205 transitions. [2024-12-01 23:17:13,400 INFO L78 Accepts]: Start accepts. Automaton has 72211 states and 100205 transitions. Word has length 197 [2024-12-01 23:17:13,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:13,400 INFO L471 AbstractCegarLoop]: Abstraction has 72211 states and 100205 transitions. [2024-12-01 23:17:13,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-12-01 23:17:13,401 INFO L276 IsEmpty]: Start isEmpty. Operand 72211 states and 100205 transitions. [2024-12-01 23:17:13,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-01 23:17:13,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:13,402 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:17:13,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:17:13,403 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)] === [2024-12-01 23:17:13,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:13,403 INFO L85 PathProgramCache]: Analyzing trace with hash -908909436, now seen corresponding path program 1 times [2024-12-01 23:17:13,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:13,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060365581] [2024-12-01 23:17:13,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:13,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-01 23:17:19,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:19,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060365581] [2024-12-01 23:17:19,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060365581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:19,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:19,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:17:19,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714223219] [2024-12-01 23:17:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:19,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:17:19,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:19,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:17:19,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:17:19,028 INFO L87 Difference]: Start difference. First operand 72211 states and 100205 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-01 23:17:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:20,727 INFO L93 Difference]: Finished difference Result 72217 states and 100210 transitions. [2024-12-01 23:17:20,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:17:20,727 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 197 [2024-12-01 23:17:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:20,956 INFO L225 Difference]: With dead ends: 72217 [2024-12-01 23:17:20,956 INFO L226 Difference]: Without dead ends: 72215 [2024-12-01 23:17:20,992 INFO L434 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 [2024-12-01 23:17:20,992 INFO L435 NwaCegarLoop]: 2523 mSDtfsCounter, 2464 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 7555 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:20,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 7555 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:21,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72215 states. [2024-12-01 23:17:22,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72215 to 72215. [2024-12-01 23:17:22,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72215 states, 52854 states have (on average 1.3051046278427365) internal successors, (68980), 53860 states have internal predecessors, (68980), 15586 states have call successors, (15586), 3841 states have call predecessors, (15586), 3772 states have return successors, (15642), 15049 states have call predecessors, (15642), 15582 states have call successors, (15642) [2024-12-01 23:17:23,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72215 states to 72215 states and 100208 transitions. [2024-12-01 23:17:23,204 INFO L78 Accepts]: Start accepts. Automaton has 72215 states and 100208 transitions. Word has length 197 [2024-12-01 23:17:23,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:23,205 INFO L471 AbstractCegarLoop]: Abstraction has 72215 states and 100208 transitions. [2024-12-01 23:17:23,205 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-01 23:17:23,205 INFO L276 IsEmpty]: Start isEmpty. Operand 72215 states and 100208 transitions. [2024-12-01 23:17:23,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-01 23:17:23,206 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:23,206 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:23,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-01 23:17:23,206 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)] === [2024-12-01 23:17:23,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1854771057, now seen corresponding path program 1 times [2024-12-01 23:17:23,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:23,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874681862] [2024-12-01 23:17:23,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:23,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-01 23:17:29,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:29,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874681862] [2024-12-01 23:17:29,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874681862] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:29,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:29,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:17:29,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613364510] [2024-12-01 23:17:29,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:29,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:17:29,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:29,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:17:29,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:17:29,601 INFO L87 Difference]: Start difference. First operand 72215 states and 100208 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:17:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:31,633 INFO L93 Difference]: Finished difference Result 72221 states and 100213 transitions. [2024-12-01 23:17:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:17:31,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 202 [2024-12-01 23:17:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:31,875 INFO L225 Difference]: With dead ends: 72221 [2024-12-01 23:17:31,875 INFO L226 Difference]: Without dead ends: 72219 [2024-12-01 23:17:31,901 INFO L434 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 [2024-12-01 23:17:31,902 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2460 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:31,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:31,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72219 states. [2024-12-01 23:17:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72219 to 72219. [2024-12-01 23:17:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72219 states, 52857 states have (on average 1.3050873110467867) internal successors, (68983), 53863 states have internal predecessors, (68983), 15586 states have call successors, (15586), 3842 states have call predecessors, (15586), 3773 states have return successors, (15642), 15049 states have call predecessors, (15642), 15582 states have call successors, (15642) [2024-12-01 23:17:34,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72219 states to 72219 states and 100211 transitions. [2024-12-01 23:17:34,192 INFO L78 Accepts]: Start accepts. Automaton has 72219 states and 100211 transitions. Word has length 202 [2024-12-01 23:17:34,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:34,193 INFO L471 AbstractCegarLoop]: Abstraction has 72219 states and 100211 transitions. [2024-12-01 23:17:34,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:17:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 72219 states and 100211 transitions. [2024-12-01 23:17:34,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-01 23:17:34,194 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:34,194 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:34,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 23:17:34,195 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)] === [2024-12-01 23:17:34,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2019887908, now seen corresponding path program 1 times [2024-12-01 23:17:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:34,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617892287] [2024-12-01 23:17:34,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:34,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2024-12-01 23:17:38,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:38,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617892287] [2024-12-01 23:17:38,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617892287] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:38,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:38,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:17:38,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580628062] [2024-12-01 23:17:38,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:38,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:17:38,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:38,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:17:38,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:17:38,972 INFO L87 Difference]: Start difference. First operand 72219 states and 100211 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:17:41,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:41,066 INFO L93 Difference]: Finished difference Result 72225 states and 100216 transitions. [2024-12-01 23:17:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:17:41,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 207 [2024-12-01 23:17:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:41,309 INFO L225 Difference]: With dead ends: 72225 [2024-12-01 23:17:41,309 INFO L226 Difference]: Without dead ends: 72223 [2024-12-01 23:17:41,345 INFO L434 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 [2024-12-01 23:17:41,346 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2459 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:41,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72223 states. [2024-12-01 23:17:43,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72223 to 72223. [2024-12-01 23:17:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72223 states, 52860 states have (on average 1.3050699962164207) internal successors, (68986), 53866 states have internal predecessors, (68986), 15586 states have call successors, (15586), 3843 states have call predecessors, (15586), 3774 states have return successors, (15642), 15049 states have call predecessors, (15642), 15582 states have call successors, (15642) [2024-12-01 23:17:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72223 states to 72223 states and 100214 transitions. [2024-12-01 23:17:43,983 INFO L78 Accepts]: Start accepts. Automaton has 72223 states and 100214 transitions. Word has length 207 [2024-12-01 23:17:43,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:43,983 INFO L471 AbstractCegarLoop]: Abstraction has 72223 states and 100214 transitions. [2024-12-01 23:17:43,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:17:43,983 INFO L276 IsEmpty]: Start isEmpty. Operand 72223 states and 100214 transitions. [2024-12-01 23:17:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-12-01 23:17:43,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:43,987 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2024-12-01 23:17:43,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 23:17:43,987 INFO L396 AbstractCegarLoop]: === Iteration 13 === 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)] === [2024-12-01 23:17:43,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:43,987 INFO L85 PathProgramCache]: Analyzing trace with hash -513680017, now seen corresponding path program 1 times [2024-12-01 23:17:43,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:43,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970477873] [2024-12-01 23:17:43,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:43,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-12-01 23:17:49,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:49,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970477873] [2024-12-01 23:17:49,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970477873] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:49,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:49,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:17:49,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988369438] [2024-12-01 23:17:49,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:49,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:17:49,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:49,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:17:49,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:17:49,478 INFO L87 Difference]: Start difference. First operand 72223 states and 100214 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:17:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:17:51,588 INFO L93 Difference]: Finished difference Result 72229 states and 100219 transitions. [2024-12-01 23:17:51,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:17:51,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 212 [2024-12-01 23:17:51,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:17:51,813 INFO L225 Difference]: With dead ends: 72229 [2024-12-01 23:17:51,813 INFO L226 Difference]: Without dead ends: 72227 [2024-12-01 23:17:51,849 INFO L434 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 [2024-12-01 23:17:51,849 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2458 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:17:51,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2459 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:17:51,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72227 states. [2024-12-01 23:17:54,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72227 to 72227. [2024-12-01 23:17:54,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72227 states, 52863 states have (on average 1.3050526833513043) internal successors, (68989), 53869 states have internal predecessors, (68989), 15586 states have call successors, (15586), 3844 states have call predecessors, (15586), 3775 states have return successors, (15642), 15049 states have call predecessors, (15642), 15582 states have call successors, (15642) [2024-12-01 23:17:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72227 states to 72227 states and 100217 transitions. [2024-12-01 23:17:54,591 INFO L78 Accepts]: Start accepts. Automaton has 72227 states and 100217 transitions. Word has length 212 [2024-12-01 23:17:54,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:17:54,591 INFO L471 AbstractCegarLoop]: Abstraction has 72227 states and 100217 transitions. [2024-12-01 23:17:54,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:17:54,591 INFO L276 IsEmpty]: Start isEmpty. Operand 72227 states and 100217 transitions. [2024-12-01 23:17:54,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-12-01 23:17:54,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:17:54,594 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:17:54,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 23:17:54,594 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-01 23:17:54,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:17:54,594 INFO L85 PathProgramCache]: Analyzing trace with hash -181129000, now seen corresponding path program 1 times [2024-12-01 23:17:54,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:17:54,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096520599] [2024-12-01 23:17:54,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:17:54,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:17:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:17:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-12-01 23:17:59,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:17:59,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096520599] [2024-12-01 23:17:59,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096520599] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:17:59,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:17:59,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:17:59,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99039554] [2024-12-01 23:17:59,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:17:59,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:17:59,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:17:59,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:17:59,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:17:59,662 INFO L87 Difference]: Start difference. First operand 72227 states and 100217 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-01 23:18:03,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:18:18,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:18:18,728 INFO L93 Difference]: Finished difference Result 195065 states and 270494 transitions. [2024-12-01 23:18:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:18:18,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 215 [2024-12-01 23:18:18,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:18:19,096 INFO L225 Difference]: With dead ends: 195065 [2024-12-01 23:18:19,096 INFO L226 Difference]: Without dead ends: 122917 [2024-12-01 23:18:19,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:18:19,252 INFO L435 NwaCegarLoop]: 4108 mSDtfsCounter, 6651 mSDsluCounter, 5303 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6651 SdHoareTripleChecker+Valid, 9411 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:18:19,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6651 Valid, 9411 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 967 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2024-12-01 23:18:19,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122917 states. [2024-12-01 23:18:23,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122917 to 122773. [2024-12-01 23:18:23,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122773 states, 90375 states have (on average 1.3081161825726142) internal successors, (118221), 91969 states have internal predecessors, (118221), 25714 states have call successors, (25714), 6834 states have call predecessors, (25714), 6681 states have return successors, (25770), 24821 states have call predecessors, (25770), 25710 states have call successors, (25770) [2024-12-01 23:18:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122773 states to 122773 states and 169705 transitions. [2024-12-01 23:18:23,856 INFO L78 Accepts]: Start accepts. Automaton has 122773 states and 169705 transitions. Word has length 215 [2024-12-01 23:18:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:18:23,857 INFO L471 AbstractCegarLoop]: Abstraction has 122773 states and 169705 transitions. [2024-12-01 23:18:23,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-01 23:18:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 122773 states and 169705 transitions. [2024-12-01 23:18:23,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-12-01 23:18:23,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:18:23,859 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:18:23,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 23:18:23,859 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)] === [2024-12-01 23:18:23,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:18:23,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1836097525, now seen corresponding path program 1 times [2024-12-01 23:18:23,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:18:23,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742567007] [2024-12-01 23:18:23,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:23,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:18:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-12-01 23:18:28,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:18:28,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742567007] [2024-12-01 23:18:28,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742567007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:18:28,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:18:28,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:18:28,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137695843] [2024-12-01 23:18:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:18:28,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:18:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:18:28,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:18:28,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:18:28,485 INFO L87 Difference]: Start difference. First operand 122773 states and 169705 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-01 23:18:32,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:18:39,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:18:39,754 INFO L93 Difference]: Finished difference Result 304498 states and 421242 transitions. [2024-12-01 23:18:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:18:39,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 230 [2024-12-01 23:18:39,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:18:40,514 INFO L225 Difference]: With dead ends: 304498 [2024-12-01 23:18:40,514 INFO L226 Difference]: Without dead ends: 181804 [2024-12-01 23:18:40,747 INFO L434 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 [2024-12-01 23:18:40,747 INFO L435 NwaCegarLoop]: 4848 mSDtfsCounter, 2387 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2387 SdHoareTripleChecker+Valid, 7349 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:18:40,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2387 Valid, 7349 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-01 23:18:40,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181804 states. [2024-12-01 23:18:46,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181804 to 181765. [2024-12-01 23:18:47,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181765 states, 133995 states have (on average 1.308593604238964) internal successors, (175345), 136233 states have internal predecessors, (175345), 37886 states have call successors, (37886), 10086 states have call predecessors, (37886), 9881 states have return successors, (37972), 36723 states have call predecessors, (37972), 37882 states have call successors, (37972) [2024-12-01 23:18:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181765 states to 181765 states and 251203 transitions. [2024-12-01 23:18:47,655 INFO L78 Accepts]: Start accepts. Automaton has 181765 states and 251203 transitions. Word has length 230 [2024-12-01 23:18:47,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:18:47,656 INFO L471 AbstractCegarLoop]: Abstraction has 181765 states and 251203 transitions. [2024-12-01 23:18:47,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-01 23:18:47,656 INFO L276 IsEmpty]: Start isEmpty. Operand 181765 states and 251203 transitions. [2024-12-01 23:18:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-12-01 23:18:47,657 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:18:47,658 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 4, 4, 4, 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] [2024-12-01 23:18:47,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 23:18:47,658 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-01 23:18:47,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:18:47,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1884235324, now seen corresponding path program 1 times [2024-12-01 23:18:47,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:18:47,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475196672] [2024-12-01 23:18:47,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:18:47,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:18:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:18:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-12-01 23:18:52,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:18:52,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475196672] [2024-12-01 23:18:52,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475196672] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:18:52,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:18:52,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:18:52,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104705458] [2024-12-01 23:18:52,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:18:52,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:18:52,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:18:52,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:18:52,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:18:52,626 INFO L87 Difference]: Start difference. First operand 181765 states and 251203 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:18:59,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:18:59,365 INFO L93 Difference]: Finished difference Result 181771 states and 251208 transitions. [2024-12-01 23:18:59,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:18:59,366 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 217 [2024-12-01 23:18:59,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:18:59,905 INFO L225 Difference]: With dead ends: 181771 [2024-12-01 23:18:59,905 INFO L226 Difference]: Without dead ends: 181769 [2024-12-01 23:18:59,960 INFO L434 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 [2024-12-01 23:18:59,961 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2457 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2458 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:18:59,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2458 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:19:00,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181769 states. [2024-12-01 23:19:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181769 to 181769. [2024-12-01 23:19:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181769 states, 133998 states have (on average 1.3085866953238108) internal successors, (175348), 136236 states have internal predecessors, (175348), 37886 states have call successors, (37886), 10087 states have call predecessors, (37886), 9882 states have return successors, (37972), 36723 states have call predecessors, (37972), 37882 states have call successors, (37972) [2024-12-01 23:19:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181769 states to 181769 states and 251206 transitions. [2024-12-01 23:19:07,625 INFO L78 Accepts]: Start accepts. Automaton has 181769 states and 251206 transitions. Word has length 217 [2024-12-01 23:19:07,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:19:07,625 INFO L471 AbstractCegarLoop]: Abstraction has 181769 states and 251206 transitions. [2024-12-01 23:19:07,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:19:07,625 INFO L276 IsEmpty]: Start isEmpty. Operand 181769 states and 251206 transitions. [2024-12-01 23:19:07,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-01 23:19:07,627 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:19:07,627 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 4, 4, 4, 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] [2024-12-01 23:19:07,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 23:19:07,628 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)] === [2024-12-01 23:19:07,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:19:07,628 INFO L85 PathProgramCache]: Analyzing trace with hash 948462159, now seen corresponding path program 1 times [2024-12-01 23:19:07,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:19:07,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715087589] [2024-12-01 23:19:07,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:19:07,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:19:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:19:12,686 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-12-01 23:19:12,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:19:12,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715087589] [2024-12-01 23:19:12,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715087589] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:19:12,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:19:12,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:19:12,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336490886] [2024-12-01 23:19:12,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:19:12,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:19:12,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:19:12,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:19:12,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:19:12,687 INFO L87 Difference]: Start difference. First operand 181769 states and 251206 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:19:18,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:19:18,560 INFO L93 Difference]: Finished difference Result 181775 states and 251211 transitions. [2024-12-01 23:19:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:19:18,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 222 [2024-12-01 23:19:18,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:19:19,127 INFO L225 Difference]: With dead ends: 181775 [2024-12-01 23:19:19,127 INFO L226 Difference]: Without dead ends: 181773 [2024-12-01 23:19:19,187 INFO L434 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 [2024-12-01 23:19:19,188 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2456 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2457 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:19:19,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2457 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:19:19,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181773 states. [2024-12-01 23:19:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181773 to 181773. [2024-12-01 23:19:26,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181773 states, 134001 states have (on average 1.3085797867180096) internal successors, (175351), 136239 states have internal predecessors, (175351), 37886 states have call successors, (37886), 10088 states have call predecessors, (37886), 9883 states have return successors, (37972), 36723 states have call predecessors, (37972), 37882 states have call successors, (37972) [2024-12-01 23:19:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181773 states to 181773 states and 251209 transitions. [2024-12-01 23:19:27,567 INFO L78 Accepts]: Start accepts. Automaton has 181773 states and 251209 transitions. Word has length 222 [2024-12-01 23:19:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:19:27,567 INFO L471 AbstractCegarLoop]: Abstraction has 181773 states and 251209 transitions. [2024-12-01 23:19:27,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:19:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 181773 states and 251209 transitions. [2024-12-01 23:19:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-12-01 23:19:27,568 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:19:27,568 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 7, 6, 6, 4, 4, 4, 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] [2024-12-01 23:19:27,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 23:19:27,569 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)] === [2024-12-01 23:19:27,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:19:27,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2121568356, now seen corresponding path program 1 times [2024-12-01 23:19:27,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:19:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378118405] [2024-12-01 23:19:27,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:19:27,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:19:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:19:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-01 23:19:32,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:19:32,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378118405] [2024-12-01 23:19:32,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378118405] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:19:32,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:19:32,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:19:32,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399090950] [2024-12-01 23:19:32,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:19:32,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:19:32,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:19:32,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:19:32,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:19:32,565 INFO L87 Difference]: Start difference. First operand 181773 states and 251209 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-01 23:19:38,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:19:38,724 INFO L93 Difference]: Finished difference Result 181779 states and 251214 transitions. [2024-12-01 23:19:38,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:19:38,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 227 [2024-12-01 23:19:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:19:39,382 INFO L225 Difference]: With dead ends: 181779 [2024-12-01 23:19:39,382 INFO L226 Difference]: Without dead ends: 181777 [2024-12-01 23:19:39,459 INFO L434 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 [2024-12-01 23:19:39,459 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2455 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:19:39,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2456 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:19:39,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181777 states. [2024-12-01 23:19:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181777 to 181777. [2024-12-01 23:19:47,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181777 states, 134004 states have (on average 1.3085728784215396) internal successors, (175354), 136242 states have internal predecessors, (175354), 37886 states have call successors, (37886), 10089 states have call predecessors, (37886), 9884 states have return successors, (37972), 36723 states have call predecessors, (37972), 37882 states have call successors, (37972) [2024-12-01 23:19:48,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181777 states to 181777 states and 251212 transitions. [2024-12-01 23:19:48,136 INFO L78 Accepts]: Start accepts. Automaton has 181777 states and 251212 transitions. Word has length 227 [2024-12-01 23:19:48,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:19:48,136 INFO L471 AbstractCegarLoop]: Abstraction has 181777 states and 251212 transitions. [2024-12-01 23:19:48,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-01 23:19:48,137 INFO L276 IsEmpty]: Start isEmpty. Operand 181777 states and 251212 transitions. [2024-12-01 23:19:48,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-01 23:19:48,138 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:19:48,138 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 8, 7, 7, 4, 4, 4, 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] [2024-12-01 23:19:48,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 23:19:48,139 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)] === [2024-12-01 23:19:48,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:19:48,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1360527569, now seen corresponding path program 1 times [2024-12-01 23:19:48,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:19:48,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370222550] [2024-12-01 23:19:48,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:19:48,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:19:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:19:54,430 INFO L134 CoverageAnalysis]: Checked inductivity of 582 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-12-01 23:19:54,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:19:54,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370222550] [2024-12-01 23:19:54,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370222550] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:19:54,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:19:54,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:19:54,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477545215] [2024-12-01 23:19:54,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:19:54,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:19:54,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:19:54,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:19:54,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:19:54,432 INFO L87 Difference]: Start difference. First operand 181777 states and 251212 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:20:01,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:20:01,862 INFO L93 Difference]: Finished difference Result 198817 states and 271287 transitions. [2024-12-01 23:20:01,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:20:01,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 232 [2024-12-01 23:20:01,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:20:02,588 INFO L225 Difference]: With dead ends: 198817 [2024-12-01 23:20:02,588 INFO L226 Difference]: Without dead ends: 198815 [2024-12-01 23:20:02,652 INFO L434 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 [2024-12-01 23:20:02,653 INFO L435 NwaCegarLoop]: 2868 mSDtfsCounter, 1807 mSDsluCounter, 6944 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 9812 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:20:02,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 9812 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-01 23:20:02,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198815 states. [2024-12-01 23:20:11,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198815 to 198815. [2024-12-01 23:20:11,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198815 states, 145677 states have (on average 1.2991687088558934) internal successors, (189259), 148035 states have internal predecessors, (189259), 40970 states have call successors, (40970), 12370 states have call predecessors, (40970), 12165 states have return successors, (41056), 39807 states have call predecessors, (41056), 40966 states have call successors, (41056) [2024-12-01 23:20:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198815 states to 198815 states and 271285 transitions. [2024-12-01 23:20:12,043 INFO L78 Accepts]: Start accepts. Automaton has 198815 states and 271285 transitions. Word has length 232 [2024-12-01 23:20:12,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:20:12,043 INFO L471 AbstractCegarLoop]: Abstraction has 198815 states and 271285 transitions. [2024-12-01 23:20:12,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:20:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 198815 states and 271285 transitions. [2024-12-01 23:20:12,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-12-01 23:20:12,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:20:12,045 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 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] [2024-12-01 23:20:12,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 23:20:12,046 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)] === [2024-12-01 23:20:12,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:20:12,047 INFO L85 PathProgramCache]: Analyzing trace with hash -571592956, now seen corresponding path program 1 times [2024-12-01 23:20:12,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:20:12,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880157382] [2024-12-01 23:20:12,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:20:12,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:20:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:20:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-12-01 23:20:17,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:20:17,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880157382] [2024-12-01 23:20:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880157382] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:20:17,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:20:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:20:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184896267] [2024-12-01 23:20:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:20:17,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:20:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:20:17,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:20:17,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:20:17,015 INFO L87 Difference]: Start difference. First operand 198815 states and 271285 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:20:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:20:25,556 INFO L93 Difference]: Finished difference Result 198821 states and 271290 transitions. [2024-12-01 23:20:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:20:25,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 237 [2024-12-01 23:20:25,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:20:26,238 INFO L225 Difference]: With dead ends: 198821 [2024-12-01 23:20:26,238 INFO L226 Difference]: Without dead ends: 198819 [2024-12-01 23:20:26,305 INFO L434 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 [2024-12-01 23:20:26,306 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2453 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:20:26,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2454 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:20:26,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198819 states. [2024-12-01 23:20:36,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198819 to 198819. [2024-12-01 23:20:36,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198819 states, 145680 states have (on average 1.2991625480505218) internal successors, (189262), 148038 states have internal predecessors, (189262), 40970 states have call successors, (40970), 12371 states have call predecessors, (40970), 12166 states have return successors, (41056), 39807 states have call predecessors, (41056), 40966 states have call successors, (41056) [2024-12-01 23:20:36,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198819 states to 198819 states and 271288 transitions. [2024-12-01 23:20:37,097 INFO L78 Accepts]: Start accepts. Automaton has 198819 states and 271288 transitions. Word has length 237 [2024-12-01 23:20:37,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:20:37,098 INFO L471 AbstractCegarLoop]: Abstraction has 198819 states and 271288 transitions. [2024-12-01 23:20:37,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:20:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 198819 states and 271288 transitions. [2024-12-01 23:20:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-12-01 23:20:37,099 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:20:37,100 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:20:37,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 23:20:37,100 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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)] === [2024-12-01 23:20:37,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:20:37,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1040010225, now seen corresponding path program 1 times [2024-12-01 23:20:37,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:20:37,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704665642] [2024-12-01 23:20:37,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:20:37,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:20:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:20:43,498 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2024-12-01 23:20:43,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:20:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704665642] [2024-12-01 23:20:43,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704665642] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:20:43,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:20:43,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:20:43,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670491138] [2024-12-01 23:20:43,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:20:43,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:20:43,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:20:43,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:20:43,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:20:43,500 INFO L87 Difference]: Start difference. First operand 198819 states and 271288 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:20:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:20:51,976 INFO L93 Difference]: Finished difference Result 198825 states and 271293 transitions. [2024-12-01 23:20:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:20:51,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 242 [2024-12-01 23:20:51,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:20:52,754 INFO L225 Difference]: With dead ends: 198825 [2024-12-01 23:20:52,754 INFO L226 Difference]: Without dead ends: 198823 [2024-12-01 23:20:52,824 INFO L434 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 [2024-12-01 23:20:52,825 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2452 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:20:52,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:20:52,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198823 states. [2024-12-01 23:21:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198823 to 198823. [2024-12-01 23:21:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198823 states, 145683 states have (on average 1.2991563874988845) internal successors, (189265), 148041 states have internal predecessors, (189265), 40970 states have call successors, (40970), 12372 states have call predecessors, (40970), 12167 states have return successors, (41056), 39807 states have call predecessors, (41056), 40966 states have call successors, (41056) [2024-12-01 23:21:04,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198823 states to 198823 states and 271291 transitions. [2024-12-01 23:21:05,083 INFO L78 Accepts]: Start accepts. Automaton has 198823 states and 271291 transitions. Word has length 242 [2024-12-01 23:21:05,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:21:05,084 INFO L471 AbstractCegarLoop]: Abstraction has 198823 states and 271291 transitions. [2024-12-01 23:21:05,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:21:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 198823 states and 271291 transitions. [2024-12-01 23:21:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-12-01 23:21:05,086 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:21:05,086 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 11, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:21:05,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 23:21:05,086 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)] === [2024-12-01 23:21:05,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:21:05,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1373353380, now seen corresponding path program 1 times [2024-12-01 23:21:05,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:21:05,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193040748] [2024-12-01 23:21:05,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:21:05,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:21:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:21:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2024-12-01 23:21:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:21:10,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193040748] [2024-12-01 23:21:10,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193040748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:21:10,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:21:10,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:21:10,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851541076] [2024-12-01 23:21:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:21:10,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:21:10,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:21:10,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:21:10,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:21:10,331 INFO L87 Difference]: Start difference. First operand 198823 states and 271291 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:21:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:21:19,461 INFO L93 Difference]: Finished difference Result 198829 states and 271296 transitions. [2024-12-01 23:21:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:21:19,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 247 [2024-12-01 23:21:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:21:20,105 INFO L225 Difference]: With dead ends: 198829 [2024-12-01 23:21:20,105 INFO L226 Difference]: Without dead ends: 198827 [2024-12-01 23:21:20,171 INFO L434 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 [2024-12-01 23:21:20,176 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2451 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:21:20,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2452 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:21:20,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198827 states. [2024-12-01 23:21:32,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198827 to 198827. [2024-12-01 23:21:32,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198827 states, 145686 states have (on average 1.2991502272009665) internal successors, (189268), 148044 states have internal predecessors, (189268), 40970 states have call successors, (40970), 12373 states have call predecessors, (40970), 12168 states have return successors, (41056), 39807 states have call predecessors, (41056), 40966 states have call successors, (41056) [2024-12-01 23:21:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198827 states to 198827 states and 271294 transitions. [2024-12-01 23:21:33,143 INFO L78 Accepts]: Start accepts. Automaton has 198827 states and 271294 transitions. Word has length 247 [2024-12-01 23:21:33,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:21:33,144 INFO L471 AbstractCegarLoop]: Abstraction has 198827 states and 271294 transitions. [2024-12-01 23:21:33,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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) [2024-12-01 23:21:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 198827 states and 271294 transitions. [2024-12-01 23:21:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-12-01 23:21:33,146 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:21:33,146 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 11, 11, 9, 9, 9, 9, 9, 9, 4, 4, 4, 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] [2024-12-01 23:21:33,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 23:21:33,146 INFO L396 AbstractCegarLoop]: === Iteration 23 === 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)] === [2024-12-01 23:21:33,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:21:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1960476911, now seen corresponding path program 1 times [2024-12-01 23:21:33,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:21:33,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265561924] [2024-12-01 23:21:33,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:21:33,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:21:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:21:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2024-12-01 23:21:38,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:21:38,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265561924] [2024-12-01 23:21:38,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265561924] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:21:38,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:21:38,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:21:38,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813853317] [2024-12-01 23:21:38,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:21:38,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:21:38,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:21:38,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:21:38,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:21:38,229 INFO L87 Difference]: Start difference. First operand 198827 states and 271294 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-01 23:21:47,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:21:47,769 INFO L93 Difference]: Finished difference Result 198833 states and 271299 transitions. [2024-12-01 23:21:47,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:21:47,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 252 [2024-12-01 23:21:47,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:21:48,445 INFO L225 Difference]: With dead ends: 198833 [2024-12-01 23:21:48,445 INFO L226 Difference]: Without dead ends: 198829 [2024-12-01 23:21:48,514 INFO L434 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 [2024-12-01 23:21:48,515 INFO L435 NwaCegarLoop]: 2526 mSDtfsCounter, 2450 mSDsluCounter, 5033 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2451 SdHoareTripleChecker+Valid, 7559 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:21:48,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2451 Valid, 7559 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:21:48,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198829 states. [2024-12-01 23:21:59,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198829 to 198829. [2024-12-01 23:22:00,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198829 states, 145688 states have (on average 1.2991392564933282) internal successors, (189269), 148045 states have internal predecessors, (189269), 40970 states have call successors, (40970), 12374 states have call predecessors, (40970), 12168 states have return successors, (41056), 39807 states have call predecessors, (41056), 40966 states have call successors, (41056) [2024-12-01 23:22:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198829 states to 198829 states and 271295 transitions. [2024-12-01 23:22:00,827 INFO L78 Accepts]: Start accepts. Automaton has 198829 states and 271295 transitions. Word has length 252 [2024-12-01 23:22:00,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:22:00,828 INFO L471 AbstractCegarLoop]: Abstraction has 198829 states and 271295 transitions. [2024-12-01 23:22:00,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-01 23:22:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 198829 states and 271295 transitions. [2024-12-01 23:22:00,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-12-01 23:22:00,830 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:22:00,830 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 13, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:22:00,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 23:22:00,831 INFO L396 AbstractCegarLoop]: === Iteration 24 === 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)] === [2024-12-01 23:22:00,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:22:00,831 INFO L85 PathProgramCache]: Analyzing trace with hash 605072209, now seen corresponding path program 1 times [2024-12-01 23:22:00,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:22:00,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659983172] [2024-12-01 23:22:00,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:22:00,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:22:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:22:05,988 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 864 trivial. 0 not checked. [2024-12-01 23:22:05,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:22:05,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659983172] [2024-12-01 23:22:05,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659983172] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:22:05,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:22:05,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:22:05,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344319606] [2024-12-01 23:22:05,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:22:05,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:22:05,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:22:05,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:22:05,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:22:05,990 INFO L87 Difference]: Start difference. First operand 198829 states and 271295 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-01 23:22:10,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:22:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:22:26,427 INFO L93 Difference]: Finished difference Result 462674 states and 631398 transitions. [2024-12-01 23:22:26,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:22:26,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 294 [2024-12-01 23:22:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:22:28,215 INFO L225 Difference]: With dead ends: 462674 [2024-12-01 23:22:28,215 INFO L226 Difference]: Without dead ends: 263924 [2024-12-01 23:22:28,711 INFO L434 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 [2024-12-01 23:22:28,713 INFO L435 NwaCegarLoop]: 4925 mSDtfsCounter, 2402 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 7424 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:22:28,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 7424 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-01 23:22:28,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263924 states. [2024-12-01 23:22:43,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263924 to 263855. [2024-12-01 23:22:43,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263855 states, 193398 states have (on average 1.2993464255059515) internal successors, (251291), 196439 states have internal predecessors, (251291), 54298 states have call successors, (54298), 16462 states have call predecessors, (54298), 16156 states have return successors, (54414), 52817 states have call predecessors, (54414), 54294 states have call successors, (54414) [2024-12-01 23:22:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263855 states to 263855 states and 360003 transitions. [2024-12-01 23:22:44,649 INFO L78 Accepts]: Start accepts. Automaton has 263855 states and 360003 transitions. Word has length 294 [2024-12-01 23:22:44,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:22:44,649 INFO L471 AbstractCegarLoop]: Abstraction has 263855 states and 360003 transitions. [2024-12-01 23:22:44,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-01 23:22:44,650 INFO L276 IsEmpty]: Start isEmpty. Operand 263855 states and 360003 transitions. [2024-12-01 23:22:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-12-01 23:22:44,652 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:22:44,652 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 13, 12, 12, 9, 9, 9, 9, 9, 9, 6, 6, 6, 3, 3, 3, 3, 3, 3, 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] [2024-12-01 23:22:44,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 23:22:44,653 INFO L396 AbstractCegarLoop]: === Iteration 25 === 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)] === [2024-12-01 23:22:44,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:22:44,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1983242663, now seen corresponding path program 1 times [2024-12-01 23:22:44,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:22:44,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977339244] [2024-12-01 23:22:44,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:22:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:22:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:22:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2024-12-01 23:22:50,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:22:50,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977339244] [2024-12-01 23:22:50,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977339244] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:22:50,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:22:50,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:22:50,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296664997] [2024-12-01 23:22:50,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:22:50,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:22:50,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:22:50,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:22:50,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:22:50,314 INFO L87 Difference]: Start difference. First operand 263855 states and 360003 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-12-01 23:23:06,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:23:06,019 INFO L93 Difference]: Finished difference Result 263855 states and 360003 transitions. [2024-12-01 23:23:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:23:06,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 295 [2024-12-01 23:23:06,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:23:07,007 INFO L225 Difference]: With dead ends: 263855 [2024-12-01 23:23:07,007 INFO L226 Difference]: Without dead ends: 261413 [2024-12-01 23:23:07,090 INFO L434 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 [2024-12-01 23:23:07,091 INFO L435 NwaCegarLoop]: 2524 mSDtfsCounter, 2440 mSDsluCounter, 5031 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 7555 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:23:07,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 7555 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:23:07,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261413 states. [2024-12-01 23:23:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261413 to 197286. [2024-12-01 23:23:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197286 states, 144666 states have (on average 1.298916124037438) internal successors, (187909), 146831 states have internal predecessors, (187909), 40499 states have call successors, (40499), 12277 states have call predecessors, (40499), 12119 states have return successors, (40586), 39575 states have call predecessors, (40586), 40496 states have call successors, (40586) [2024-12-01 23:23:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197286 states to 197286 states and 268994 transitions. [2024-12-01 23:23:20,151 INFO L78 Accepts]: Start accepts. Automaton has 197286 states and 268994 transitions. Word has length 295 [2024-12-01 23:23:20,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:23:20,152 INFO L471 AbstractCegarLoop]: Abstraction has 197286 states and 268994 transitions. [2024-12-01 23:23:20,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-12-01 23:23:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 197286 states and 268994 transitions. [2024-12-01 23:23:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-12-01 23:23:20,155 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:23:20,156 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:23:20,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-01 23:23:20,156 INFO L396 AbstractCegarLoop]: === Iteration 26 === 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)] === [2024-12-01 23:23:20,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:23:20,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1169565674, now seen corresponding path program 1 times [2024-12-01 23:23:20,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:23:20,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297770836] [2024-12-01 23:23:20,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:23:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:23:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:23:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2024-12-01 23:23:26,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:23:26,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297770836] [2024-12-01 23:23:26,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297770836] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:23:26,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:23:26,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:23:26,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756592816] [2024-12-01 23:23:26,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:23:26,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:23:26,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:23:26,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:23:26,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:23:26,029 INFO L87 Difference]: Start difference. First operand 197286 states and 268994 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-12-01 23:23:39,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:23:39,796 INFO L93 Difference]: Finished difference Result 197286 states and 268994 transitions. [2024-12-01 23:23:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:23:39,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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 268 [2024-12-01 23:23:39,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:23:40,522 INFO L225 Difference]: With dead ends: 197286 [2024-12-01 23:23:40,522 INFO L226 Difference]: Without dead ends: 197284 [2024-12-01 23:23:40,587 INFO L434 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 [2024-12-01 23:23:40,588 INFO L435 NwaCegarLoop]: 2799 mSDtfsCounter, 1719 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 9623 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:23:40,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1720 Valid, 9623 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:23:40,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197284 states. [2024-12-01 23:23:54,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197284 to 197284. [2024-12-01 23:23:54,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197284 states, 144665 states have (on average 1.297715411467874) internal successors, (187734), 146829 states have internal predecessors, (187734), 40499 states have call successors, (40499), 12277 states have call predecessors, (40499), 12119 states have return successors, (40586), 39575 states have call predecessors, (40586), 40496 states have call successors, (40586) [2024-12-01 23:23:54,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197284 states to 197284 states and 268819 transitions. [2024-12-01 23:23:55,073 INFO L78 Accepts]: Start accepts. Automaton has 197284 states and 268819 transitions. Word has length 268 [2024-12-01 23:23:55,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:23:55,074 INFO L471 AbstractCegarLoop]: Abstraction has 197284 states and 268819 transitions. [2024-12-01 23:23:55,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 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) [2024-12-01 23:23:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 197284 states and 268819 transitions. [2024-12-01 23:23:55,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-12-01 23:23:55,087 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:23:55,087 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:23:55,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 23:23:55,088 INFO L396 AbstractCegarLoop]: === Iteration 27 === 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)] === [2024-12-01 23:23:55,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:23:55,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1832068521, now seen corresponding path program 1 times [2024-12-01 23:23:55,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:23:55,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381450601] [2024-12-01 23:23:55,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:23:55,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:23:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:24:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2024-12-01 23:24:00,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:24:00,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381450601] [2024-12-01 23:24:00,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381450601] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:24:00,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:24:00,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:24:00,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219351062] [2024-12-01 23:24:00,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:24:00,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:24:00,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:24:00,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:24:00,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:24:00,123 INFO L87 Difference]: Start difference. First operand 197284 states and 268819 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 23:24:11,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:24:11,835 INFO L93 Difference]: Finished difference Result 394585 states and 537736 transitions. [2024-12-01 23:24:11,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:24:11,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 336 [2024-12-01 23:24:11,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:24:12,684 INFO L225 Difference]: With dead ends: 394585 [2024-12-01 23:24:12,684 INFO L226 Difference]: Without dead ends: 197380 [2024-12-01 23:24:13,164 INFO L434 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 [2024-12-01 23:24:13,165 INFO L435 NwaCegarLoop]: 2460 mSDtfsCounter, 0 mSDsluCounter, 2454 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:24:13,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4914 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:24:13,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197380 states. [2024-12-01 23:24:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197380 to 197380. [2024-12-01 23:24:27,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197380 states, 144761 states have (on average 1.2975179779084145) internal successors, (187830), 146925 states have internal predecessors, (187830), 40499 states have call successors, (40499), 12277 states have call predecessors, (40499), 12119 states have return successors, (40586), 39575 states have call predecessors, (40586), 40496 states have call successors, (40586) [2024-12-01 23:24:28,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197380 states to 197380 states and 268915 transitions. [2024-12-01 23:24:28,482 INFO L78 Accepts]: Start accepts. Automaton has 197380 states and 268915 transitions. Word has length 336 [2024-12-01 23:24:28,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:24:28,482 INFO L471 AbstractCegarLoop]: Abstraction has 197380 states and 268915 transitions. [2024-12-01 23:24:28,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 23:24:28,483 INFO L276 IsEmpty]: Start isEmpty. Operand 197380 states and 268915 transitions. [2024-12-01 23:24:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-12-01 23:24:28,491 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:24:28,491 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:24:28,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 23:24:28,491 INFO L396 AbstractCegarLoop]: === Iteration 28 === 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)] === [2024-12-01 23:24:28,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:24:28,492 INFO L85 PathProgramCache]: Analyzing trace with hash 143124779, now seen corresponding path program 1 times [2024-12-01 23:24:28,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:24:28,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769408355] [2024-12-01 23:24:28,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:24:28,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:24:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:24:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2024-12-01 23:24:33,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:24:33,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769408355] [2024-12-01 23:24:33,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769408355] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:24:33,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:24:33,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:24:33,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102977520] [2024-12-01 23:24:33,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:24:33,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:24:33,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:24:33,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:24:33,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:24:33,773 INFO L87 Difference]: Start difference. First operand 197380 states and 268915 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 23:24:37,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-01 23:24:49,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:24:49,896 INFO L93 Difference]: Finished difference Result 197380 states and 268915 transitions. [2024-12-01 23:24:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:24:49,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 336 [2024-12-01 23:24:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:24:50,285 INFO L225 Difference]: With dead ends: 197380 [2024-12-01 23:24:50,285 INFO L226 Difference]: Without dead ends: 0 [2024-12-01 23:24:50,796 INFO L434 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 [2024-12-01 23:24:50,797 INFO L435 NwaCegarLoop]: 2701 mSDtfsCounter, 1207 mSDsluCounter, 7208 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 9909 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:24:50,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 9909 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-01 23:24:50,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-01 23:24:50,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-01 23:24:50,798 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) [2024-12-01 23:24:50,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-01 23:24:50,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 336 [2024-12-01 23:24:50,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:24:50,889 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 23:24:50,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (36), 3 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-12-01 23:24:50,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-01 23:24:50,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-01 23:24:50,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-12-01 23:24:50,896 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-12-01 23:24:50,896 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) [2024-12-01 23:24:50,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-01 23:24:50,901 INFO L422 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, 1, 1, 1] [2024-12-01 23:24:50,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.