./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/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_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/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_acadcb34-3880-428b-869b-e5778d2d4630/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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:07:10,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:07:10,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 13:07:10,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:07:10,535 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:07:10,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:07:10,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:07:10,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:07:10,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:07:10,556 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:07:10,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:07:10,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:07:10,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:07:10,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:07:10,556 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:07:10,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:07:10,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:07:10,557 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:07:10,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:07:10,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:07:10,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:07:10,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:07:10,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:07:10,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:07:10,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:07:10,559 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_acadcb34-3880-428b-869b-e5778d2d4630/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 -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2024-12-02 13:07:10,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:07:10,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:07:10,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:07:10,808 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:07:10,808 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:07:10,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2024-12-02 13:07:13,446 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/data/bc5e43362/7e4341ed5a3c419fbf9734ae9b12c6f2/FLAG10d2b6257 [2024-12-02 13:07:13,927 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:07:13,927 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2024-12-02 13:07:13,962 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/data/bc5e43362/7e4341ed5a3c419fbf9734ae9b12c6f2/FLAG10d2b6257 [2024-12-02 13:07:14,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/data/bc5e43362/7e4341ed5a3c419fbf9734ae9b12c6f2 [2024-12-02 13:07:14,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:07:14,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:07:14,032 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:07:14,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:07:14,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:07:14,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:07:14" (1/1) ... [2024-12-02 13:07:14,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bd813bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:14, skipping insertion in model container [2024-12-02 13:07:14,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:07:14" (1/1) ... [2024-12-02 13:07:14,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:07:16,117 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2024-12-02 13:07:16,120 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2024-12-02 13:07:16,120 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2024-12-02 13:07:16,120 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2024-12-02 13:07:16,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:07:16,194 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:07:16,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5252] [2024-12-02 13:07:16,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5259] [2024-12-02 13:07:16,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5266] [2024-12-02 13:07:16,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5302-5303] [2024-12-02 13:07:16,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5308-5310] [2024-12-02 13:07:16,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5526-5527] [2024-12-02 13:07:16,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5560-5561] [2024-12-02 13:07:16,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7910] [2024-12-02 13:07:16,460 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2024-12-02 13:07:16,460 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2024-12-02 13:07:16,461 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2024-12-02 13:07:16,461 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_acadcb34-3880-428b-869b-e5778d2d4630/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2024-12-02 13:07:16,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:07:16,656 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:07:16,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16 WrapperNode [2024-12-02 13:07:16,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:07:16,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:07:16,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:07:16,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:07:16,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:16,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:16,873 INFO L138 Inliner]: procedures = 430, calls = 1731, calls flagged for inlining = 202, calls inlined = 186, statements flattened = 4826 [2024-12-02 13:07:16,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:07:16,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:07:16,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:07:16,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:07:16,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:16,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:16,911 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,800 INFO L175 MemorySlicer]: Split 776 memory accesses to 19 slices as follows [4, 572, 15, 1, 4, 1, 2, 10, 38, 9, 2, 5, 9, 54, 3, 24, 2, 2, 19]. 74 percent of accesses are in the largest equivalence class. The 59 initializations are split as follows [4, 0, 15, 0, 4, 1, 2, 10, 0, 9, 0, 4, 9, 0, 1, 0, 0, 0, 0]. The 394 writes are split as follows [0, 284, 0, 0, 0, 0, 0, 0, 32, 0, 1, 0, 0, 42, 0, 17, 1, 1, 16]. [2024-12-02 13:07:17,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,897 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:17,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:18,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:07:18,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:07:18,002 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:07:18,002 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:07:18,003 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (1/1) ... [2024-12-02 13:07:18,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:07:18,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:18,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:07:18,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:07:18,059 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2024-12-02 13:07:18,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2024-12-02 13:07:18,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 13:07:18,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-12-02 13:07:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-12-02 13:07:18,061 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-12-02 13:07:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-12-02 13:07:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-12-02 13:07:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-12-02 13:07:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-12-02 13:07:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 13:07:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 13:07:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-12-02 13:07:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2024-12-02 13:07:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2024-12-02 13:07:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 13:07:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-12-02 13:07:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 13:07:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 13:07:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2024-12-02 13:07:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 13:07:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-02 13:07:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 13:07:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-02 13:07:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 13:07:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2024-12-02 13:07:18,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#18 [2024-12-02 13:07:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 13:07:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 13:07:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 13:07:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 13:07:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#18 [2024-12-02 13:07:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-12-02 13:07:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-12-02 13:07:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-12-02 13:07:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2024-12-02 13:07:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-12-02 13:07:18,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-12-02 13:07:18,068 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-12-02 13:07:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-12-02 13:07:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2024-12-02 13:07:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2024-12-02 13:07:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 13:07:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 13:07:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2024-12-02 13:07:18,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2024-12-02 13:07:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 13:07:18,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-12-02 13:07:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-12-02 13:07:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 13:07:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 13:07:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 13:07:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2024-12-02 13:07:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2024-12-02 13:07:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-12-02 13:07:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:07:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2024-12-02 13:07:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 13:07:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 13:07:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 13:07:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 13:07:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-12-02 13:07:18,075 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 13:07:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2024-12-02 13:07:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2024-12-02 13:07:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2024-12-02 13:07:18,076 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 13:07:18,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-12-02 13:07:18,077 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2024-12-02 13:07:18,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2024-12-02 13:07:18,078 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2024-12-02 13:07:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-12-02 13:07:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-12-02 13:07:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 13:07:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-12-02 13:07:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 13:07:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2024-12-02 13:07:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-12-02 13:07:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2024-12-02 13:07:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 13:07:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2024-12-02 13:07:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2024-12-02 13:07:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-12-02 13:07:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-12-02 13:07:18,896 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:07:18,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:07:19,933 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 13:07:33,021 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-12-02 13:07:33,729 INFO L? ?]: Removed 2639 outVars from TransFormulas that were not future-live. [2024-12-02 13:07:33,730 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:07:33,767 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:07:33,767 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:07:33,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:07:33 BoogieIcfgContainer [2024-12-02 13:07:33,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:07:33,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:07:33,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:07:33,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:07:33,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:07:14" (1/3) ... [2024-12-02 13:07:33,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac26e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:07:33, skipping insertion in model container [2024-12-02 13:07:33,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:16" (2/3) ... [2024-12-02 13:07:33,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac26e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:07:33, skipping insertion in model container [2024-12-02 13:07:33,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:07:33" (3/3) ... [2024-12-02 13:07:33,775 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2024-12-02 13:07:33,786 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:07:33,788 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i that has 117 procedures, 2170 locations, 1 initial locations, 38 loop locations, and 3 error locations. [2024-12-02 13:07:33,866 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:07:33,875 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;@78f85360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:07:33,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-02 13:07:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 2078 states, 1507 states have (on average 1.3205043132050431) internal successors, (1990), 1537 states have internal predecessors, (1990), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) [2024-12-02 13:07:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 13:07:33,895 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:33,896 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:33,897 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)] === [2024-12-02 13:07:33,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:33,901 INFO L85 PathProgramCache]: Analyzing trace with hash 480054072, now seen corresponding path program 1 times [2024-12-02 13:07:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332347688] [2024-12-02 13:07:33,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 13:07:38,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:38,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332347688] [2024-12-02 13:07:38,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332347688] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:38,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:38,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:38,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891631242] [2024-12-02 13:07:38,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:38,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:07:38,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:38,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:07:38,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:07:38,902 INFO L87 Difference]: Start difference. First operand has 2078 states, 1507 states have (on average 1.3205043132050431) internal successors, (1990), 1537 states have internal predecessors, (1990), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:07:42,972 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 [] [2024-12-02 13:07:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:43,794 INFO L93 Difference]: Finished difference Result 6086 states and 8770 transitions. [2024-12-02 13:07:43,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:07:43,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2024-12-02 13:07:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:43,838 INFO L225 Difference]: With dead ends: 6086 [2024-12-02 13:07:43,838 INFO L226 Difference]: Without dead ends: 4019 [2024-12-02 13:07:43,856 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 [2024-12-02 13:07:43,858 INFO L435 NwaCegarLoop]: 2892 mSDtfsCounter, 2750 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 5714 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 [2024-12-02 13:07:43,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 5714 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 13:07:43,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4019 states. [2024-12-02 13:07:44,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 4015. [2024-12-02 13:07:44,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 2932 states have (on average 1.2957025920873124) internal successors, (3799), 2989 states have internal predecessors, (3799), 890 states have call successors, (890), 191 states have call predecessors, (890), 190 states have return successors, (886), 880 states have call predecessors, (886), 886 states have call successors, (886) [2024-12-02 13:07:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 5575 transitions. [2024-12-02 13:07:44,137 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 5575 transitions. Word has length 116 [2024-12-02 13:07:44,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:44,138 INFO L471 AbstractCegarLoop]: Abstraction has 4015 states and 5575 transitions. [2024-12-02 13:07:44,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-12-02 13:07:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 5575 transitions. [2024-12-02 13:07:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 13:07:44,142 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:44,143 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:44,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:07:44,143 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)] === [2024-12-02 13:07:44,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:44,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1500094386, now seen corresponding path program 1 times [2024-12-02 13:07:44,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:44,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233977505] [2024-12-02 13:07:44,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:44,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-12-02 13:07:48,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:48,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233977505] [2024-12-02 13:07:48,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233977505] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:48,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:48,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:48,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895245785] [2024-12-02 13:07:48,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:48,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:07:48,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:48,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:07:48,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:07:48,680 INFO L87 Difference]: Start difference. First operand 4015 states and 5575 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, (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) [2024-12-02 13:07:52,741 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 [] [2024-12-02 13:07:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:53,733 INFO L93 Difference]: Finished difference Result 11067 states and 15299 transitions. [2024-12-02 13:07:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:07:53,733 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, (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 120 [2024-12-02 13:07:53,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:53,794 INFO L225 Difference]: With dead ends: 11067 [2024-12-02 13:07:53,794 INFO L226 Difference]: Without dead ends: 7073 [2024-12-02 13:07:53,818 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 [2024-12-02 13:07:53,819 INFO L435 NwaCegarLoop]: 3079 mSDtfsCounter, 2174 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 5869 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:53,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 5869 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 13:07:53,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7073 states. [2024-12-02 13:07:54,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7073 to 7044. [2024-12-02 13:07:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7044 states, 5125 states have (on average 1.281170731707317) internal successors, (6566), 5229 states have internal predecessors, (6566), 1563 states have call successors, (1563), 360 states have call predecessors, (1563), 353 states have return successors, (1579), 1530 states have call predecessors, (1579), 1559 states have call successors, (1579) [2024-12-02 13:07:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9708 transitions. [2024-12-02 13:07:54,262 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9708 transitions. Word has length 120 [2024-12-02 13:07:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:54,262 INFO L471 AbstractCegarLoop]: Abstraction has 7044 states and 9708 transitions. [2024-12-02 13:07:54,263 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, (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) [2024-12-02 13:07:54,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9708 transitions. [2024-12-02 13:07:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 13:07:54,269 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:54,269 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:07:54,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:07:54,270 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)] === [2024-12-02 13:07:54,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:54,270 INFO L85 PathProgramCache]: Analyzing trace with hash -825660509, now seen corresponding path program 1 times [2024-12-02 13:07:54,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:54,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869785909] [2024-12-02 13:07:54,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:54,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-12-02 13:07:58,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:58,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869785909] [2024-12-02 13:07:58,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869785909] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:58,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:58,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:58,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878650165] [2024-12-02 13:07:58,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:58,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:07:58,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:58,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:07:58,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:07:58,410 INFO L87 Difference]: Start difference. First operand 7044 states and 9708 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 13:08:02,462 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 [] [2024-12-02 13:08:03,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:03,757 INFO L93 Difference]: Finished difference Result 15582 states and 21474 transitions. [2024-12-02 13:08:03,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:08:03,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 168 [2024-12-02 13:08:03,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:03,797 INFO L225 Difference]: With dead ends: 15582 [2024-12-02 13:08:03,797 INFO L226 Difference]: Without dead ends: 8559 [2024-12-02 13:08:03,820 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 [2024-12-02 13:08:03,821 INFO L435 NwaCegarLoop]: 3968 mSDtfsCounter, 2095 mSDsluCounter, 2788 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 6756 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 [2024-12-02 13:08:03,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 6756 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:08:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8559 states. [2024-12-02 13:08:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8559 to 8532. [2024-12-02 13:08:04,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8532 states, 6271 states have (on average 1.2827300271089142) internal successors, (8044), 6387 states have internal predecessors, (8044), 1822 states have call successors, (1822), 444 states have call predecessors, (1822), 436 states have return successors, (1830), 1786 states have call predecessors, (1830), 1818 states have call successors, (1830) [2024-12-02 13:08:04,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8532 states to 8532 states and 11696 transitions. [2024-12-02 13:08:04,155 INFO L78 Accepts]: Start accepts. Automaton has 8532 states and 11696 transitions. Word has length 168 [2024-12-02 13:08:04,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:04,156 INFO L471 AbstractCegarLoop]: Abstraction has 8532 states and 11696 transitions. [2024-12-02 13:08:04,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 13:08:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 8532 states and 11696 transitions. [2024-12-02 13:08:04,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 13:08:04,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:04,160 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:08:04,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:08:04,160 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)] === [2024-12-02 13:08:04,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:04,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1337766742, now seen corresponding path program 1 times [2024-12-02 13:08:04,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:04,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825684450] [2024-12-02 13:08:04,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:04,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-12-02 13:08:08,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:08,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825684450] [2024-12-02 13:08:08,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825684450] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:08,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:08,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:08:08,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202765293] [2024-12-02 13:08:08,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:08,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:08:08,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:08,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:08:08,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:08:08,657 INFO L87 Difference]: Start difference. First operand 8532 states and 11696 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 13:08:12,709 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 [] [2024-12-02 13:08:13,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:13,857 INFO L93 Difference]: Finished difference Result 19119 states and 26244 transitions. [2024-12-02 13:08:13,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:08:13,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 170 [2024-12-02 13:08:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:13,920 INFO L225 Difference]: With dead ends: 19119 [2024-12-02 13:08:13,920 INFO L226 Difference]: Without dead ends: 10608 [2024-12-02 13:08:13,949 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 [2024-12-02 13:08:13,950 INFO L435 NwaCegarLoop]: 2871 mSDtfsCounter, 2587 mSDsluCounter, 2786 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 5657 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:13,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 5657 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2024-12-02 13:08:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10608 states. [2024-12-02 13:08:14,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10608 to 10580. [2024-12-02 13:08:14,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10580 states, 7742 states have (on average 1.283518470679411) internal successors, (9937), 7900 states have internal predecessors, (9937), 2281 states have call successors, (2281), 567 states have call predecessors, (2281), 554 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-12-02 13:08:14,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10580 states to 10580 states and 14516 transitions. [2024-12-02 13:08:14,375 INFO L78 Accepts]: Start accepts. Automaton has 10580 states and 14516 transitions. Word has length 170 [2024-12-02 13:08:14,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:14,375 INFO L471 AbstractCegarLoop]: Abstraction has 10580 states and 14516 transitions. [2024-12-02 13:08:14,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 13:08:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 10580 states and 14516 transitions. [2024-12-02 13:08:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 13:08:14,379 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:14,379 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 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] [2024-12-02 13:08:14,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:08:14,380 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 13:08:14,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:14,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1216505380, now seen corresponding path program 1 times [2024-12-02 13:08:14,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:14,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573722369] [2024-12-02 13:08:14,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:14,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:18,594 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-12-02 13:08:18,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:18,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573722369] [2024-12-02 13:08:18,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573722369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:18,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:18,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:08:18,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433923708] [2024-12-02 13:08:18,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:18,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:08:18,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:18,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:08:18,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:08:18,596 INFO L87 Difference]: Start difference. First operand 10580 states and 14516 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 13:08:22,648 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 [] [2024-12-02 13:08:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:23,497 INFO L93 Difference]: Finished difference Result 31043 states and 42641 transitions. [2024-12-02 13:08:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:08:23,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 172 [2024-12-02 13:08:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:23,556 INFO L225 Difference]: With dead ends: 31043 [2024-12-02 13:08:23,556 INFO L226 Difference]: Without dead ends: 20559 [2024-12-02 13:08:23,579 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 [2024-12-02 13:08:23,580 INFO L435 NwaCegarLoop]: 3038 mSDtfsCounter, 2714 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2714 SdHoareTripleChecker+Valid, 5869 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 [2024-12-02 13:08:23,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2714 Valid, 5869 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 13:08:23,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2024-12-02 13:08:23,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20555. [2024-12-02 13:08:23,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20555 states, 15085 states have (on average 1.2849187935034803) internal successors, (19383), 15371 states have internal predecessors, (19383), 4390 states have call successors, (4390), 1098 states have call predecessors, (4390), 1077 states have return successors, (4428), 4291 states have call predecessors, (4428), 4386 states have call successors, (4428) [2024-12-02 13:08:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20555 states to 20555 states and 28201 transitions. [2024-12-02 13:08:24,027 INFO L78 Accepts]: Start accepts. Automaton has 20555 states and 28201 transitions. Word has length 172 [2024-12-02 13:08:24,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:24,027 INFO L471 AbstractCegarLoop]: Abstraction has 20555 states and 28201 transitions. [2024-12-02 13:08:24,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 13:08:24,027 INFO L276 IsEmpty]: Start isEmpty. Operand 20555 states and 28201 transitions. [2024-12-02 13:08:24,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-12-02 13:08:24,029 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:24,029 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 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] [2024-12-02 13:08:24,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:08:24,030 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 13:08:24,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:24,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1357053990, now seen corresponding path program 1 times [2024-12-02 13:08:24,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:24,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860204841] [2024-12-02 13:08:24,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:24,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-12-02 13:08:28,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:28,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860204841] [2024-12-02 13:08:28,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860204841] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:28,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:28,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:28,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595857771] [2024-12-02 13:08:28,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:28,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:28,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:28,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:28,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:28,748 INFO L87 Difference]: Start difference. First operand 20555 states and 28201 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 13:08:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:29,424 INFO L93 Difference]: Finished difference Result 20561 states and 28206 transitions. [2024-12-02 13:08:29,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:29,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 172 [2024-12-02 13:08:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:29,528 INFO L225 Difference]: With dead ends: 20561 [2024-12-02 13:08:29,528 INFO L226 Difference]: Without dead ends: 20559 [2024-12-02 13:08:29,542 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 [2024-12-02 13:08:29,543 INFO L435 NwaCegarLoop]: 2855 mSDtfsCounter, 2809 mSDsluCounter, 5697 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 8552 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:08:29,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 8552 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:29,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2024-12-02 13:08:30,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20559. [2024-12-02 13:08:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20559 states, 15088 states have (on average 1.284862142099682) internal successors, (19386), 15374 states have internal predecessors, (19386), 4390 states have call successors, (4390), 1099 states have call predecessors, (4390), 1078 states have return successors, (4428), 4291 states have call predecessors, (4428), 4386 states have call successors, (4428) [2024-12-02 13:08:30,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20559 states to 20559 states and 28204 transitions. [2024-12-02 13:08:30,282 INFO L78 Accepts]: Start accepts. Automaton has 20559 states and 28204 transitions. Word has length 172 [2024-12-02 13:08:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:30,282 INFO L471 AbstractCegarLoop]: Abstraction has 20559 states and 28204 transitions. [2024-12-02 13:08:30,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 13:08:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 20559 states and 28204 transitions. [2024-12-02 13:08:30,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-02 13:08:30,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:30,285 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:08:30,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:08:30,286 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)] === [2024-12-02 13:08:30,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:30,286 INFO L85 PathProgramCache]: Analyzing trace with hash 158949189, now seen corresponding path program 1 times [2024-12-02 13:08:30,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:30,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027465309] [2024-12-02 13:08:30,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:30,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:35,029 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-12-02 13:08:35,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:35,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027465309] [2024-12-02 13:08:35,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027465309] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:35,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:35,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:35,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624925555] [2024-12-02 13:08:35,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:35,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:35,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:35,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:35,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:35,031 INFO L87 Difference]: Start difference. First operand 20559 states and 28204 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 13:08:35,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:35,827 INFO L93 Difference]: Finished difference Result 20565 states and 28209 transitions. [2024-12-02 13:08:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:35,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2024-12-02 13:08:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:35,920 INFO L225 Difference]: With dead ends: 20565 [2024-12-02 13:08:35,920 INFO L226 Difference]: Without dead ends: 20563 [2024-12-02 13:08:35,934 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 [2024-12-02 13:08:35,934 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2805 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:08:35,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20563 states. [2024-12-02 13:08:36,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20563 to 20563. [2024-12-02 13:08:36,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20563 states, 15091 states have (on average 1.2848055132198) internal successors, (19389), 15377 states have internal predecessors, (19389), 4390 states have call successors, (4390), 1100 states have call predecessors, (4390), 1079 states have return successors, (4428), 4291 states have call predecessors, (4428), 4386 states have call successors, (4428) [2024-12-02 13:08:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20563 states to 20563 states and 28207 transitions. [2024-12-02 13:08:36,853 INFO L78 Accepts]: Start accepts. Automaton has 20563 states and 28207 transitions. Word has length 177 [2024-12-02 13:08:36,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:36,853 INFO L471 AbstractCegarLoop]: Abstraction has 20563 states and 28207 transitions. [2024-12-02 13:08:36,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 13:08:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 20563 states and 28207 transitions. [2024-12-02 13:08:36,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-12-02 13:08:36,857 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:36,857 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:08:36,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:08:36,857 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)] === [2024-12-02 13:08:36,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1878412474, now seen corresponding path program 1 times [2024-12-02 13:08:36,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:36,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752319923] [2024-12-02 13:08:36,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:36,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:41,452 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2024-12-02 13:08:41,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:41,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752319923] [2024-12-02 13:08:41,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752319923] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:41,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:41,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:41,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763619117] [2024-12-02 13:08:41,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:41,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:41,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:41,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:41,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:41,454 INFO L87 Difference]: Start difference. First operand 20563 states and 28207 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:08:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:42,197 INFO L93 Difference]: Finished difference Result 20569 states and 28212 transitions. [2024-12-02 13:08:42,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:42,197 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 182 [2024-12-02 13:08:42,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:42,256 INFO L225 Difference]: With dead ends: 20569 [2024-12-02 13:08:42,256 INFO L226 Difference]: Without dead ends: 20567 [2024-12-02 13:08:42,264 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 [2024-12-02 13:08:42,265 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2804 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2805 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:08:42,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2805 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:42,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20567 states. [2024-12-02 13:08:42,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20567 to 20567. [2024-12-02 13:08:42,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20567 states, 15094 states have (on average 1.284748906850404) internal successors, (19392), 15380 states have internal predecessors, (19392), 4390 states have call successors, (4390), 1101 states have call predecessors, (4390), 1080 states have return successors, (4428), 4291 states have call predecessors, (4428), 4386 states have call successors, (4428) [2024-12-02 13:08:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20567 states to 20567 states and 28210 transitions. [2024-12-02 13:08:42,969 INFO L78 Accepts]: Start accepts. Automaton has 20567 states and 28210 transitions. Word has length 182 [2024-12-02 13:08:42,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:42,969 INFO L471 AbstractCegarLoop]: Abstraction has 20567 states and 28210 transitions. [2024-12-02 13:08:42,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:08:42,969 INFO L276 IsEmpty]: Start isEmpty. Operand 20567 states and 28210 transitions. [2024-12-02 13:08:42,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 13:08:42,973 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:42,973 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:42,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:08:42,973 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)] === [2024-12-02 13:08:42,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:42,974 INFO L85 PathProgramCache]: Analyzing trace with hash -585928141, now seen corresponding path program 1 times [2024-12-02 13:08:42,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:42,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517235113] [2024-12-02 13:08:42,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:42,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:46,795 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-12-02 13:08:46,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:46,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517235113] [2024-12-02 13:08:46,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517235113] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:46,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:46,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:08:46,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111974193] [2024-12-02 13:08:46,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:46,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:08:46,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:46,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:08:46,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:08:46,797 INFO L87 Difference]: Start difference. First operand 20567 states and 28210 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 13:08:50,838 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 [] [2024-12-02 13:08:52,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:52,062 INFO L93 Difference]: Finished difference Result 51055 states and 70082 transitions. [2024-12-02 13:08:52,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:08:52,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 199 [2024-12-02 13:08:52,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:52,186 INFO L225 Difference]: With dead ends: 51055 [2024-12-02 13:08:52,186 INFO L226 Difference]: Without dead ends: 30584 [2024-12-02 13:08:52,250 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 [2024-12-02 13:08:52,251 INFO L435 NwaCegarLoop]: 5568 mSDtfsCounter, 2744 mSDsluCounter, 2833 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2744 SdHoareTripleChecker+Valid, 8401 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 [2024-12-02 13:08:52,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2744 Valid, 8401 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 13:08:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30584 states. [2024-12-02 13:08:53,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30584 to 30550. [2024-12-02 13:08:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30550 states, 22445 states have (on average 1.2851860102472712) internal successors, (28846), 22859 states have internal predecessors, (28846), 6499 states have call successors, (6499), 1632 states have call predecessors, (6499), 1603 states have return successors, (6558), 6367 states have call predecessors, (6558), 6495 states have call successors, (6558) [2024-12-02 13:08:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30550 states to 30550 states and 41903 transitions. [2024-12-02 13:08:53,231 INFO L78 Accepts]: Start accepts. Automaton has 30550 states and 41903 transitions. Word has length 199 [2024-12-02 13:08:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:53,231 INFO L471 AbstractCegarLoop]: Abstraction has 30550 states and 41903 transitions. [2024-12-02 13:08:53,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 13:08:53,231 INFO L276 IsEmpty]: Start isEmpty. Operand 30550 states and 41903 transitions. [2024-12-02 13:08:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 13:08:53,233 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:53,234 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:08:53,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:08:53,234 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)] === [2024-12-02 13:08:53,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:53,234 INFO L85 PathProgramCache]: Analyzing trace with hash -60829787, now seen corresponding path program 1 times [2024-12-02 13:08:53,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:53,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843423937] [2024-12-02 13:08:53,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:53,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:08:57,209 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-12-02 13:08:57,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:57,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843423937] [2024-12-02 13:08:57,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843423937] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:57,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:57,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:08:57,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303686301] [2024-12-02 13:08:57,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:57,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:08:57,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:57,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:08:57,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:08:57,210 INFO L87 Difference]: Start difference. First operand 30550 states and 41903 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:08:58,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:08:58,228 INFO L93 Difference]: Finished difference Result 30556 states and 41908 transitions. [2024-12-02 13:08:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:08:58,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 187 [2024-12-02 13:08:58,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:08:58,296 INFO L225 Difference]: With dead ends: 30556 [2024-12-02 13:08:58,296 INFO L226 Difference]: Without dead ends: 30554 [2024-12-02 13:08:58,303 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 [2024-12-02 13:08:58,304 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2803 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:08:58,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:08:58,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30554 states. [2024-12-02 13:08:59,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30554 to 30554. [2024-12-02 13:08:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30554 states, 22448 states have (on average 1.2851478973627941) internal successors, (28849), 22862 states have internal predecessors, (28849), 6499 states have call successors, (6499), 1633 states have call predecessors, (6499), 1604 states have return successors, (6558), 6367 states have call predecessors, (6558), 6495 states have call successors, (6558) [2024-12-02 13:08:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30554 states to 30554 states and 41906 transitions. [2024-12-02 13:08:59,121 INFO L78 Accepts]: Start accepts. Automaton has 30554 states and 41906 transitions. Word has length 187 [2024-12-02 13:08:59,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:08:59,122 INFO L471 AbstractCegarLoop]: Abstraction has 30554 states and 41906 transitions. [2024-12-02 13:08:59,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:08:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 30554 states and 41906 transitions. [2024-12-02 13:08:59,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-12-02 13:08:59,124 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:08:59,124 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:08:59,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:08:59,125 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)] === [2024-12-02 13:08:59,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:59,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1068805734, now seen corresponding path program 1 times [2024-12-02 13:08:59,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:59,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061149393] [2024-12-02 13:08:59,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:08:59,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:03,576 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-12-02 13:09:03,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:03,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061149393] [2024-12-02 13:09:03,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061149393] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:03,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:03,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:03,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331037029] [2024-12-02 13:09:03,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:03,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:03,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:03,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:03,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:03,577 INFO L87 Difference]: Start difference. First operand 30554 states and 41906 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:04,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:04,605 INFO L93 Difference]: Finished difference Result 30560 states and 41911 transitions. [2024-12-02 13:09:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:04,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 192 [2024-12-02 13:09:04,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:04,688 INFO L225 Difference]: With dead ends: 30560 [2024-12-02 13:09:04,688 INFO L226 Difference]: Without dead ends: 30558 [2024-12-02 13:09:04,699 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 [2024-12-02 13:09:04,700 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2802 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2803 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:09:04,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2803 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30558 states. [2024-12-02 13:09:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30558 to 30558. [2024-12-02 13:09:05,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30558 states, 22451 states have (on average 1.2851097946639347) internal successors, (28852), 22865 states have internal predecessors, (28852), 6499 states have call successors, (6499), 1634 states have call predecessors, (6499), 1605 states have return successors, (6558), 6367 states have call predecessors, (6558), 6495 states have call successors, (6558) [2024-12-02 13:09:05,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30558 states to 30558 states and 41909 transitions. [2024-12-02 13:09:05,582 INFO L78 Accepts]: Start accepts. Automaton has 30558 states and 41909 transitions. Word has length 192 [2024-12-02 13:09:05,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:05,582 INFO L471 AbstractCegarLoop]: Abstraction has 30558 states and 41909 transitions. [2024-12-02 13:09:05,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:05,582 INFO L276 IsEmpty]: Start isEmpty. Operand 30558 states and 41909 transitions. [2024-12-02 13:09:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 13:09:05,585 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:05,585 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:09:05,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:09:05,586 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)] === [2024-12-02 13:09:05,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:05,586 INFO L85 PathProgramCache]: Analyzing trace with hash 237959173, now seen corresponding path program 1 times [2024-12-02 13:09:05,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:05,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570559252] [2024-12-02 13:09:05,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:05,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-12-02 13:09:09,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:09,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570559252] [2024-12-02 13:09:09,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570559252] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:09,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:09,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:09,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122729106] [2024-12-02 13:09:09,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:09,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:09,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:09,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:09,557 INFO L87 Difference]: Start difference. First operand 30558 states and 41909 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:10,649 INFO L93 Difference]: Finished difference Result 30564 states and 41914 transitions. [2024-12-02 13:09:10,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:10,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 197 [2024-12-02 13:09:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:10,734 INFO L225 Difference]: With dead ends: 30564 [2024-12-02 13:09:10,734 INFO L226 Difference]: Without dead ends: 30562 [2024-12-02 13:09:10,747 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 [2024-12-02 13:09:10,748 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2801 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2802 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:09:10,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2802 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30562 states. [2024-12-02 13:09:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30562 to 30562. [2024-12-02 13:09:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30562 states, 22454 states have (on average 1.285071702146611) internal successors, (28855), 22868 states have internal predecessors, (28855), 6499 states have call successors, (6499), 1635 states have call predecessors, (6499), 1606 states have return successors, (6558), 6367 states have call predecessors, (6558), 6495 states have call successors, (6558) [2024-12-02 13:09:11,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30562 states to 30562 states and 41912 transitions. [2024-12-02 13:09:11,786 INFO L78 Accepts]: Start accepts. Automaton has 30562 states and 41912 transitions. Word has length 197 [2024-12-02 13:09:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:11,787 INFO L471 AbstractCegarLoop]: Abstraction has 30562 states and 41912 transitions. [2024-12-02 13:09:11,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 30562 states and 41912 transitions. [2024-12-02 13:09:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-12-02 13:09:11,790 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:11,790 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:09:11,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:09:11,790 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)] === [2024-12-02 13:09:11,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash -584453754, now seen corresponding path program 1 times [2024-12-02 13:09:11,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115030584] [2024-12-02 13:09:11,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:16,006 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-12-02 13:09:16,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:16,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115030584] [2024-12-02 13:09:16,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115030584] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:16,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:16,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:16,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457105077] [2024-12-02 13:09:16,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:16,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:16,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:16,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:16,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:16,008 INFO L87 Difference]: Start difference. First operand 30562 states and 41912 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:17,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:17,391 INFO L93 Difference]: Finished difference Result 36880 states and 50143 transitions. [2024-12-02 13:09:17,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:17,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 202 [2024-12-02 13:09:17,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:17,503 INFO L225 Difference]: With dead ends: 36880 [2024-12-02 13:09:17,503 INFO L226 Difference]: Without dead ends: 36878 [2024-12-02 13:09:17,522 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 [2024-12-02 13:09:17,523 INFO L435 NwaCegarLoop]: 3157 mSDtfsCounter, 2161 mSDsluCounter, 7588 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 10745 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:17,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 10745 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:09:17,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36878 states. [2024-12-02 13:09:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36878 to 36878. [2024-12-02 13:09:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36878 states, 27035 states have (on average 1.281375994081746) internal successors, (34642), 27482 states have internal predecessors, (34642), 7720 states have call successors, (7720), 2149 states have call predecessors, (7720), 2120 states have return successors, (7779), 7588 states have call predecessors, (7779), 7716 states have call successors, (7779) [2024-12-02 13:09:18,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36878 states to 36878 states and 50141 transitions. [2024-12-02 13:09:18,805 INFO L78 Accepts]: Start accepts. Automaton has 36878 states and 50141 transitions. Word has length 202 [2024-12-02 13:09:18,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:18,805 INFO L471 AbstractCegarLoop]: Abstraction has 36878 states and 50141 transitions. [2024-12-02 13:09:18,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 36878 states and 50141 transitions. [2024-12-02 13:09:18,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 13:09:18,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:18,808 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:09:18,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:09:18,808 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 13:09:18,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:18,809 INFO L85 PathProgramCache]: Analyzing trace with hash 492886117, now seen corresponding path program 1 times [2024-12-02 13:09:18,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:18,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673798144] [2024-12-02 13:09:18,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:18,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-12-02 13:09:23,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:23,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673798144] [2024-12-02 13:09:23,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673798144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:23,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:23,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:23,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735013038] [2024-12-02 13:09:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:23,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:23,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:23,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:23,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:23,178 INFO L87 Difference]: Start difference. First operand 36878 states and 50141 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:24,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:24,550 INFO L93 Difference]: Finished difference Result 36884 states and 50146 transitions. [2024-12-02 13:09:24,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:24,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 207 [2024-12-02 13:09:24,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:24,636 INFO L225 Difference]: With dead ends: 36884 [2024-12-02 13:09:24,636 INFO L226 Difference]: Without dead ends: 36882 [2024-12-02 13:09:24,647 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 [2024-12-02 13:09:24,647 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2799 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2800 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:09:24,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2800 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36882 states. [2024-12-02 13:09:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36882 to 36882. [2024-12-02 13:09:25,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36882 states, 27038 states have (on average 1.2813447740217472) internal successors, (34645), 27485 states have internal predecessors, (34645), 7720 states have call successors, (7720), 2150 states have call predecessors, (7720), 2121 states have return successors, (7779), 7588 states have call predecessors, (7779), 7716 states have call successors, (7779) [2024-12-02 13:09:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36882 states to 36882 states and 50144 transitions. [2024-12-02 13:09:25,916 INFO L78 Accepts]: Start accepts. Automaton has 36882 states and 50144 transitions. Word has length 207 [2024-12-02 13:09:25,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:25,916 INFO L471 AbstractCegarLoop]: Abstraction has 36882 states and 50144 transitions. [2024-12-02 13:09:25,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 36882 states and 50144 transitions. [2024-12-02 13:09:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-12-02 13:09:25,919 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:25,919 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 9, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:09:25,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 13:09:25,920 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)] === [2024-12-02 13:09:25,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2043708250, now seen corresponding path program 1 times [2024-12-02 13:09:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:25,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882565961] [2024-12-02 13:09:25,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:25,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:30,021 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-12-02 13:09:30,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:30,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882565961] [2024-12-02 13:09:30,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882565961] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:30,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:30,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:30,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665704875] [2024-12-02 13:09:30,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:30,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:30,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:30,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:30,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:30,023 INFO L87 Difference]: Start difference. First operand 36882 states and 50144 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:31,462 INFO L93 Difference]: Finished difference Result 36888 states and 50149 transitions. [2024-12-02 13:09:31,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:31,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 212 [2024-12-02 13:09:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:31,553 INFO L225 Difference]: With dead ends: 36888 [2024-12-02 13:09:31,553 INFO L226 Difference]: Without dead ends: 36886 [2024-12-02 13:09:31,567 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 [2024-12-02 13:09:31,567 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2798 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2799 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:09:31,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2799 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:31,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36886 states. [2024-12-02 13:09:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36886 to 36886. [2024-12-02 13:09:32,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36886 states, 27041 states have (on average 1.2813135608890205) internal successors, (34648), 27488 states have internal predecessors, (34648), 7720 states have call successors, (7720), 2151 states have call predecessors, (7720), 2122 states have return successors, (7779), 7588 states have call predecessors, (7779), 7716 states have call successors, (7779) [2024-12-02 13:09:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36886 states to 36886 states and 50147 transitions. [2024-12-02 13:09:32,972 INFO L78 Accepts]: Start accepts. Automaton has 36886 states and 50147 transitions. Word has length 212 [2024-12-02 13:09:32,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:32,972 INFO L471 AbstractCegarLoop]: Abstraction has 36886 states and 50147 transitions. [2024-12-02 13:09:32,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:32,972 INFO L276 IsEmpty]: Start isEmpty. Operand 36886 states and 50147 transitions. [2024-12-02 13:09:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-12-02 13:09:32,975 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:32,975 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 10, 9, 9, 8, 8, 8, 8, 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] [2024-12-02 13:09:32,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 13:09:32,975 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)] === [2024-12-02 13:09:32,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:32,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1209044795, now seen corresponding path program 1 times [2024-12-02 13:09:32,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:32,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826586130] [2024-12-02 13:09:32,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:32,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-12-02 13:09:36,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:36,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826586130] [2024-12-02 13:09:36,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826586130] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:36,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:36,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:36,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793336761] [2024-12-02 13:09:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:36,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:36,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:36,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:36,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:36,969 INFO L87 Difference]: Start difference. First operand 36886 states and 50147 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:38,475 INFO L93 Difference]: Finished difference Result 36892 states and 50152 transitions. [2024-12-02 13:09:38,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:38,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 217 [2024-12-02 13:09:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:38,577 INFO L225 Difference]: With dead ends: 36892 [2024-12-02 13:09:38,578 INFO L226 Difference]: Without dead ends: 36890 [2024-12-02 13:09:38,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:09:38,596 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2797 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:09:38,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36890 states. [2024-12-02 13:09:39,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36890 to 36890. [2024-12-02 13:09:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36890 states, 27044 states have (on average 1.2812823546812602) internal successors, (34651), 27491 states have internal predecessors, (34651), 7720 states have call successors, (7720), 2152 states have call predecessors, (7720), 2123 states have return successors, (7779), 7588 states have call predecessors, (7779), 7716 states have call successors, (7779) [2024-12-02 13:09:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36890 states to 36890 states and 50150 transitions. [2024-12-02 13:09:40,058 INFO L78 Accepts]: Start accepts. Automaton has 36890 states and 50150 transitions. Word has length 217 [2024-12-02 13:09:40,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:40,059 INFO L471 AbstractCegarLoop]: Abstraction has 36890 states and 50150 transitions. [2024-12-02 13:09:40,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:40,059 INFO L276 IsEmpty]: Start isEmpty. Operand 36890 states and 50150 transitions. [2024-12-02 13:09:40,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-02 13:09:40,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:40,062 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 10, 10, 8, 8, 8, 8, 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] [2024-12-02 13:09:40,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:09:40,062 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)] === [2024-12-02 13:09:40,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:40,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1493913542, now seen corresponding path program 1 times [2024-12-02 13:09:40,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:40,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808221437] [2024-12-02 13:09:40,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:40,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-12-02 13:09:44,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:44,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808221437] [2024-12-02 13:09:44,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808221437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:44,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:44,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:09:44,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091831850] [2024-12-02 13:09:44,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:44,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:09:44,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:44,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:09:44,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:09:44,351 INFO L87 Difference]: Start difference. First operand 36890 states and 50150 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:45,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:45,941 INFO L93 Difference]: Finished difference Result 36896 states and 50155 transitions. [2024-12-02 13:09:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:09:45,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 222 [2024-12-02 13:09:45,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:46,035 INFO L225 Difference]: With dead ends: 36896 [2024-12-02 13:09:46,035 INFO L226 Difference]: Without dead ends: 36892 [2024-12-02 13:09:46,049 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 [2024-12-02 13:09:46,049 INFO L435 NwaCegarLoop]: 2858 mSDtfsCounter, 2796 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 8556 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 [2024-12-02 13:09:46,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2797 Valid, 8556 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:09:46,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36892 states. [2024-12-02 13:09:47,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36892 to 36892. [2024-12-02 13:09:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36892 states, 27046 states have (on average 1.281224580344598) internal successors, (34652), 27492 states have internal predecessors, (34652), 7720 states have call successors, (7720), 2153 states have call predecessors, (7720), 2123 states have return successors, (7779), 7588 states have call predecessors, (7779), 7716 states have call successors, (7779) [2024-12-02 13:09:47,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36892 states to 36892 states and 50151 transitions. [2024-12-02 13:09:47,848 INFO L78 Accepts]: Start accepts. Automaton has 36892 states and 50151 transitions. Word has length 222 [2024-12-02 13:09:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:09:47,849 INFO L471 AbstractCegarLoop]: Abstraction has 36892 states and 50151 transitions. [2024-12-02 13:09:47,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:09:47,849 INFO L276 IsEmpty]: Start isEmpty. Operand 36892 states and 50151 transitions. [2024-12-02 13:09:47,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-02 13:09:47,856 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:09:47,857 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:47,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:09:47,857 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 13:09:47,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:47,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1484521986, now seen corresponding path program 1 times [2024-12-02 13:09:47,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:47,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148882974] [2024-12-02 13:09:47,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:09:47,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:09:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-12-02 13:09:51,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:51,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148882974] [2024-12-02 13:09:51,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148882974] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:51,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:51,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:09:51,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169290045] [2024-12-02 13:09:51,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:51,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:09:51,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:51,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:09:51,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:09:51,737 INFO L87 Difference]: Start difference. First operand 36892 states and 50151 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-12-02 13:09:55,782 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 [] [2024-12-02 13:09:58,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:09:58,807 INFO L93 Difference]: Finished difference Result 86885 states and 118197 transitions. [2024-12-02 13:09:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:09:58,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 232 [2024-12-02 13:09:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:09:58,960 INFO L225 Difference]: With dead ends: 86885 [2024-12-02 13:09:58,960 INFO L226 Difference]: Without dead ends: 50089 [2024-12-02 13:09:59,048 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 [2024-12-02 13:09:59,048 INFO L435 NwaCegarLoop]: 4860 mSDtfsCounter, 2091 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 7647 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:09:59,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 7647 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:09:59,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50089 states. [2024-12-02 13:10:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50089 to 50016. [2024-12-02 13:10:01,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50016 states, 36774 states have (on average 1.2823190297492795) internal successors, (47156), 37356 states have internal predecessors, (47156), 10348 states have call successors, (10348), 2928 states have call predecessors, (10348), 2891 states have return successors, (10410), 10187 states have call predecessors, (10410), 10344 states have call successors, (10410) [2024-12-02 13:10:01,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50016 states to 50016 states and 67914 transitions. [2024-12-02 13:10:01,356 INFO L78 Accepts]: Start accepts. Automaton has 50016 states and 67914 transitions. Word has length 232 [2024-12-02 13:10:01,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:01,357 INFO L471 AbstractCegarLoop]: Abstraction has 50016 states and 67914 transitions. [2024-12-02 13:10:01,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-12-02 13:10:01,357 INFO L276 IsEmpty]: Start isEmpty. Operand 50016 states and 67914 transitions. [2024-12-02 13:10:01,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-12-02 13:10:01,359 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:01,359 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 12, 11, 11, 8, 8, 8, 8, 8, 8, 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] [2024-12-02 13:10:01,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:10:01,359 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)] === [2024-12-02 13:10:01,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:01,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1010916176, now seen corresponding path program 1 times [2024-12-02 13:10:01,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:01,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144182864] [2024-12-02 13:10:01,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:01,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:05,053 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2024-12-02 13:10:05,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:05,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144182864] [2024-12-02 13:10:05,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144182864] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:05,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:05,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:10:05,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610270719] [2024-12-02 13:10:05,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:05,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:10:05,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:05,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:10:05,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:10:05,054 INFO L87 Difference]: Start difference. First operand 50016 states and 67914 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 13:10:09,088 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 [] [2024-12-02 13:10:12,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:12,903 INFO L93 Difference]: Finished difference Result 116411 states and 158075 transitions. [2024-12-02 13:10:12,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:10:12,904 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 262 [2024-12-02 13:10:12,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:13,073 INFO L225 Difference]: With dead ends: 116411 [2024-12-02 13:10:13,073 INFO L226 Difference]: Without dead ends: 66491 [2024-12-02 13:10:13,168 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 [2024-12-02 13:10:13,169 INFO L435 NwaCegarLoop]: 5609 mSDtfsCounter, 2754 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 8440 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 [2024-12-02 13:10:13,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 8440 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 13:10:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66491 states. [2024-12-02 13:10:16,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66491 to 66427. [2024-12-02 13:10:16,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66427 states, 48855 states have (on average 1.2824480605874526) internal successors, (62654), 49616 states have internal predecessors, (62654), 13728 states have call successors, (13728), 3895 states have call predecessors, (13728), 3841 states have return successors, (13812), 13523 states have call predecessors, (13812), 13724 states have call successors, (13812) [2024-12-02 13:10:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66427 states to 66427 states and 90194 transitions. [2024-12-02 13:10:16,264 INFO L78 Accepts]: Start accepts. Automaton has 66427 states and 90194 transitions. Word has length 262 [2024-12-02 13:10:16,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:16,264 INFO L471 AbstractCegarLoop]: Abstraction has 66427 states and 90194 transitions. [2024-12-02 13:10:16,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 13:10:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 66427 states and 90194 transitions. [2024-12-02 13:10:16,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-12-02 13:10:16,266 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:16,267 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 8, 8, 8, 8, 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] [2024-12-02 13:10:16,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:10:16,267 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)] === [2024-12-02 13:10:16,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:16,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1152073435, now seen corresponding path program 1 times [2024-12-02 13:10:16,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:16,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818503729] [2024-12-02 13:10:16,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-12-02 13:10:20,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:20,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818503729] [2024-12-02 13:10:20,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818503729] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:20,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:20,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:10:20,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823238089] [2024-12-02 13:10:20,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:20,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:10:20,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:20,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:10:20,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:10:20,406 INFO L87 Difference]: Start difference. First operand 66427 states and 90194 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:10:23,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:23,122 INFO L93 Difference]: Finished difference Result 66427 states and 90194 transitions. [2024-12-02 13:10:23,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:10:23,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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 227 [2024-12-02 13:10:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:23,316 INFO L225 Difference]: With dead ends: 66427 [2024-12-02 13:10:23,316 INFO L226 Difference]: Without dead ends: 65878 [2024-12-02 13:10:23,345 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 [2024-12-02 13:10:23,345 INFO L435 NwaCegarLoop]: 2856 mSDtfsCounter, 2792 mSDsluCounter, 5696 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2792 SdHoareTripleChecker+Valid, 8552 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:23,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2792 Valid, 8552 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:10:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65878 states. [2024-12-02 13:10:26,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65878 to 49656. [2024-12-02 13:10:26,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49656 states, 36530 states have (on average 1.2823706542567752) internal successors, (46845), 37076 states have internal predecessors, (46845), 10252 states have call successors, (10252), 2899 states have call predecessors, (10252), 2872 states have return successors, (10318), 10136 states have call predecessors, (10318), 10252 states have call successors, (10318) [2024-12-02 13:10:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49656 states to 49656 states and 67415 transitions. [2024-12-02 13:10:26,565 INFO L78 Accepts]: Start accepts. Automaton has 49656 states and 67415 transitions. Word has length 227 [2024-12-02 13:10:26,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:26,566 INFO L471 AbstractCegarLoop]: Abstraction has 49656 states and 67415 transitions. [2024-12-02 13:10:26,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 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) [2024-12-02 13:10:26,566 INFO L276 IsEmpty]: Start isEmpty. Operand 49656 states and 67415 transitions. [2024-12-02 13:10:26,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-02 13:10:26,572 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:26,572 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:10:26,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:10:26,572 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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)] === [2024-12-02 13:10:26,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:26,573 INFO L85 PathProgramCache]: Analyzing trace with hash 261194391, now seen corresponding path program 1 times [2024-12-02 13:10:26,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:26,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911940827] [2024-12-02 13:10:26,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:26,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-12-02 13:10:31,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:31,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911940827] [2024-12-02 13:10:31,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911940827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:31,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:31,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:10:31,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465964220] [2024-12-02 13:10:31,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:31,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:10:31,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:31,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:10:31,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:10:31,336 INFO L87 Difference]: Start difference. First operand 49656 states and 67415 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 13:10:35,375 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 [] [2024-12-02 13:10:39,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:39,144 INFO L93 Difference]: Finished difference Result 112180 states and 152372 transitions. [2024-12-02 13:10:39,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:10:39,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 306 [2024-12-02 13:10:39,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:39,328 INFO L225 Difference]: With dead ends: 112180 [2024-12-02 13:10:39,328 INFO L226 Difference]: Without dead ends: 62543 [2024-12-02 13:10:39,422 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 [2024-12-02 13:10:39,422 INFO L435 NwaCegarLoop]: 4835 mSDtfsCounter, 2041 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 7578 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:39,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 7578 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 13:10:39,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62543 states. [2024-12-02 13:10:42,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62543 to 62535. [2024-12-02 13:10:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62535 states, 46088 states have (on average 1.283262454434994) internal successors, (59143), 46758 states have internal predecessors, (59143), 12813 states have call successors, (12813), 3662 states have call predecessors, (12813), 3632 states have return successors, (12882), 12684 states have call predecessors, (12882), 12813 states have call successors, (12882) [2024-12-02 13:10:42,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62535 states to 62535 states and 84838 transitions. [2024-12-02 13:10:42,672 INFO L78 Accepts]: Start accepts. Automaton has 62535 states and 84838 transitions. Word has length 306 [2024-12-02 13:10:42,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:10:42,672 INFO L471 AbstractCegarLoop]: Abstraction has 62535 states and 84838 transitions. [2024-12-02 13:10:42,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 13:10:42,673 INFO L276 IsEmpty]: Start isEmpty. Operand 62535 states and 84838 transitions. [2024-12-02 13:10:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-12-02 13:10:42,677 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:10:42,677 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-12-02 13:10:42,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 13:10:42,677 INFO L396 AbstractCegarLoop]: === Iteration 22 === 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)] === [2024-12-02 13:10:42,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:42,678 INFO L85 PathProgramCache]: Analyzing trace with hash 288259993, now seen corresponding path program 1 times [2024-12-02 13:10:42,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:42,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478017776] [2024-12-02 13:10:42,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:10:42,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:10:46,518 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-12-02 13:10:46,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:46,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478017776] [2024-12-02 13:10:46,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478017776] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:46,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:46,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:10:46,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261882568] [2024-12-02 13:10:46,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:46,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:10:46,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:46,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:10:46,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:10:46,520 INFO L87 Difference]: Start difference. First operand 62535 states and 84838 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 13:10:50,557 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 [] [2024-12-02 13:10:55,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:10:55,184 INFO L93 Difference]: Finished difference Result 141382 states and 191852 transitions. [2024-12-02 13:10:55,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:10:55,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 306 [2024-12-02 13:10:55,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:10:55,446 INFO L225 Difference]: With dead ends: 141382 [2024-12-02 13:10:55,446 INFO L226 Difference]: Without dead ends: 78943 [2024-12-02 13:10:55,564 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 [2024-12-02 13:10:55,565 INFO L435 NwaCegarLoop]: 4843 mSDtfsCounter, 2537 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2537 SdHoareTripleChecker+Valid, 7115 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:10:55,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2537 Valid, 7115 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:10:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78943 states. [2024-12-02 13:11:00,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78943 to 78935. [2024-12-02 13:11:00,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78935 states, 58258 states have (on average 1.283308730131484) internal successors, (74763), 59076 states have internal predecessors, (74763), 16062 states have call successors, (16062), 4652 states have call predecessors, (16062), 4613 states have return successors, (16134), 15908 states have call predecessors, (16134), 16062 states have call successors, (16134) [2024-12-02 13:11:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78935 states to 78935 states and 106959 transitions. [2024-12-02 13:11:00,609 INFO L78 Accepts]: Start accepts. Automaton has 78935 states and 106959 transitions. Word has length 306 [2024-12-02 13:11:00,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:00,609 INFO L471 AbstractCegarLoop]: Abstraction has 78935 states and 106959 transitions. [2024-12-02 13:11:00,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-12-02 13:11:00,609 INFO L276 IsEmpty]: Start isEmpty. Operand 78935 states and 106959 transitions. [2024-12-02 13:11:00,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-12-02 13:11:00,614 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:00,614 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:11:00,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 13:11:00,615 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 13:11:00,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:00,615 INFO L85 PathProgramCache]: Analyzing trace with hash 484320555, now seen corresponding path program 1 times [2024-12-02 13:11:00,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:00,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970978500] [2024-12-02 13:11:00,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:00,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:11:04,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:04,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970978500] [2024-12-02 13:11:04,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970978500] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:04,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:04,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:04,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674519328] [2024-12-02 13:11:04,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:04,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:04,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:04,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:04,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:04,701 INFO L87 Difference]: Start difference. First operand 78935 states and 106959 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-02 13:11:08,744 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 [] [2024-12-02 13:11:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:13,917 INFO L93 Difference]: Finished difference Result 170717 states and 231462 transitions. [2024-12-02 13:11:13,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:13,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 361 [2024-12-02 13:11:13,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:14,214 INFO L225 Difference]: With dead ends: 170717 [2024-12-02 13:11:14,214 INFO L226 Difference]: Without dead ends: 91878 [2024-12-02 13:11:14,372 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 [2024-12-02 13:11:14,373 INFO L435 NwaCegarLoop]: 4661 mSDtfsCounter, 2041 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 7403 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:11:14,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 7403 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:11:14,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91878 states. [2024-12-02 13:11:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91878 to 91870. [2024-12-02 13:11:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91870 states, 67872 states have (on average 1.2838431164545026) internal successors, (87137), 68814 states have internal predecessors, (87137), 18630 states have call successors, (18630), 5408 states have call predecessors, (18630), 5366 states have return successors, (18705), 18463 states have call predecessors, (18705), 18630 states have call successors, (18705) [2024-12-02 13:11:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91870 states to 91870 states and 124472 transitions. [2024-12-02 13:11:18,963 INFO L78 Accepts]: Start accepts. Automaton has 91870 states and 124472 transitions. Word has length 361 [2024-12-02 13:11:18,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:18,964 INFO L471 AbstractCegarLoop]: Abstraction has 91870 states and 124472 transitions. [2024-12-02 13:11:18,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-02 13:11:18,964 INFO L276 IsEmpty]: Start isEmpty. Operand 91870 states and 124472 transitions. [2024-12-02 13:11:18,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-12-02 13:11:18,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:18,969 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 10, 10, 10, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:11:18,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 13:11:18,969 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 13:11:18,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:18,970 INFO L85 PathProgramCache]: Analyzing trace with hash 511386157, now seen corresponding path program 1 times [2024-12-02 13:11:18,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:18,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872195085] [2024-12-02 13:11:18,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:18,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:23,933 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-12-02 13:11:23,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:23,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872195085] [2024-12-02 13:11:23,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872195085] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:23,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:23,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:11:23,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422814170] [2024-12-02 13:11:23,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:23,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:11:23,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:23,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:11:23,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:11:23,935 INFO L87 Difference]: Start difference. First operand 91870 states and 124472 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-02 13:11:27,975 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 [] [2024-12-02 13:11:34,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:34,719 INFO L93 Difference]: Finished difference Result 196731 states and 266668 transitions. [2024-12-02 13:11:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:11:34,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 361 [2024-12-02 13:11:34,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:35,156 INFO L225 Difference]: With dead ends: 196731 [2024-12-02 13:11:35,156 INFO L226 Difference]: Without dead ends: 104957 [2024-12-02 13:11:35,351 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 [2024-12-02 13:11:35,352 INFO L435 NwaCegarLoop]: 4835 mSDtfsCounter, 2054 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 7578 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:11:35,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2054 Valid, 7578 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 13:11:35,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104957 states. [2024-12-02 13:11:40,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104957 to 104949. [2024-12-02 13:11:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104949 states, 77606 states have (on average 1.2841146303120892) internal successors, (99655), 78672 states have internal predecessors, (99655), 21210 states have call successors, (21210), 6176 states have call predecessors, (21210), 6131 states have return successors, (21288), 21030 states have call predecessors, (21288), 21210 states have call successors, (21288) [2024-12-02 13:11:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104949 states to 104949 states and 142153 transitions. [2024-12-02 13:11:40,586 INFO L78 Accepts]: Start accepts. Automaton has 104949 states and 142153 transitions. Word has length 361 [2024-12-02 13:11:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:40,586 INFO L471 AbstractCegarLoop]: Abstraction has 104949 states and 142153 transitions. [2024-12-02 13:11:40,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-02 13:11:40,586 INFO L276 IsEmpty]: Start isEmpty. Operand 104949 states and 142153 transitions. [2024-12-02 13:11:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-12-02 13:11:40,593 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:40,594 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 11, 11, 11, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:11:40,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 13:11:40,594 INFO L396 AbstractCegarLoop]: === Iteration 25 === 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)] === [2024-12-02 13:11:40,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:40,595 INFO L85 PathProgramCache]: Analyzing trace with hash 949491985, now seen corresponding path program 1 times [2024-12-02 13:11:40,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:40,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177311485] [2024-12-02 13:11:40,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:40,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:11:44,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:11:45,291 INFO L134 CoverageAnalysis]: Checked inductivity of 978 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2024-12-02 13:11:45,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:11:45,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177311485] [2024-12-02 13:11:45,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177311485] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:11:45,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:11:45,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:11:45,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900828721] [2024-12-02 13:11:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:11:45,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:11:45,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:11:45,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:11:45,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:11:45,293 INFO L87 Difference]: Start difference. First operand 104949 states and 142153 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, (42), 3 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-12-02 13:11:50,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:11:50,262 INFO L93 Difference]: Finished difference Result 104949 states and 142153 transitions. [2024-12-02 13:11:50,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:11:50,262 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, (42), 3 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 402 [2024-12-02 13:11:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:11:50,611 INFO L225 Difference]: With dead ends: 104949 [2024-12-02 13:11:50,611 INFO L226 Difference]: Without dead ends: 104947 [2024-12-02 13:11:50,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:11:50,648 INFO L435 NwaCegarLoop]: 3098 mSDtfsCounter, 2047 mSDsluCounter, 7487 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 10585 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 [2024-12-02 13:11:50,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 10585 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:11:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104947 states. [2024-12-02 13:11:55,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104947 to 104947. [2024-12-02 13:11:55,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104947 states, 77605 states have (on average 1.2832678306810128) internal successors, (99588), 78670 states have internal predecessors, (99588), 21210 states have call successors, (21210), 6176 states have call predecessors, (21210), 6131 states have return successors, (21288), 21030 states have call predecessors, (21288), 21210 states have call successors, (21288) [2024-12-02 13:11:56,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104947 states to 104947 states and 142086 transitions. [2024-12-02 13:11:56,118 INFO L78 Accepts]: Start accepts. Automaton has 104947 states and 142086 transitions. Word has length 402 [2024-12-02 13:11:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:11:56,118 INFO L471 AbstractCegarLoop]: Abstraction has 104947 states and 142086 transitions. [2024-12-02 13:11:56,119 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, (42), 3 states have call predecessors, (42), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-12-02 13:11:56,119 INFO L276 IsEmpty]: Start isEmpty. Operand 104947 states and 142086 transitions. [2024-12-02 13:11:56,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-12-02 13:11:56,132 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:11:56,132 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 14, 14, 14, 8, 8, 8, 8, 8, 8, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:11:56,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 13:11:56,133 INFO L396 AbstractCegarLoop]: === Iteration 26 === 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)] === [2024-12-02 13:11:56,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:11:56,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1504434896, now seen corresponding path program 1 times [2024-12-02 13:11:56,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:11:56,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687910835] [2024-12-02 13:11:56,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:11:56,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2024-12-02 13:12:01,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:01,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687910835] [2024-12-02 13:12:01,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687910835] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:01,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:12:01,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:12:01,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342482139] [2024-12-02 13:12:01,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:01,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:12:01,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:01,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:12:01,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:12:01,744 INFO L87 Difference]: Start difference. First operand 104947 states and 142086 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:12:05,783 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 [] [2024-12-02 13:12:13,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:12:13,201 INFO L93 Difference]: Finished difference Result 225493 states and 305244 transitions. [2024-12-02 13:12:13,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:12:13,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 458 [2024-12-02 13:12:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:12:13,650 INFO L225 Difference]: With dead ends: 225493 [2024-12-02 13:12:13,650 INFO L226 Difference]: Without dead ends: 120642 [2024-12-02 13:12:13,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:12:13,893 INFO L435 NwaCegarLoop]: 4415 mSDtfsCounter, 2119 mSDsluCounter, 11524 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 15939 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:12:13,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2119 Valid, 15939 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-12-02 13:12:13,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120642 states. [2024-12-02 13:12:20,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120642 to 120612. [2024-12-02 13:12:20,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120612 states, 89121 states have (on average 1.2829523905701237) internal successors, (114338), 90340 states have internal predecessors, (114338), 24384 states have call successors, (24384), 7157 states have call predecessors, (24384), 7106 states have return successors, (24477), 24188 states have call predecessors, (24477), 24384 states have call successors, (24477) [2024-12-02 13:12:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120612 states to 120612 states and 163199 transitions. [2024-12-02 13:12:21,116 INFO L78 Accepts]: Start accepts. Automaton has 120612 states and 163199 transitions. Word has length 458 [2024-12-02 13:12:21,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:21,117 INFO L471 AbstractCegarLoop]: Abstraction has 120612 states and 163199 transitions. [2024-12-02 13:12:21,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 4 states have internal predecessors, (179), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:12:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 120612 states and 163199 transitions. [2024-12-02 13:12:21,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-12-02 13:12:21,133 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:21,133 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 14, 14, 14, 8, 8, 8, 8, 8, 8, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:12:21,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 13:12:21,133 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)] === [2024-12-02 13:12:21,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:21,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1300880797, now seen corresponding path program 1 times [2024-12-02 13:12:21,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:21,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768375766] [2024-12-02 13:12:21,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:21,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:25,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2024-12-02 13:12:25,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:25,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768375766] [2024-12-02 13:12:25,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768375766] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:25,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:12:25,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:12:25,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98329166] [2024-12-02 13:12:25,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:25,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:12:25,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:25,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:12:25,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:12:25,755 INFO L87 Difference]: Start difference. First operand 120612 states and 163199 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:12:29,796 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 [] [2024-12-02 13:12:37,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:12:37,149 INFO L93 Difference]: Finished difference Result 254237 states and 344053 transitions. [2024-12-02 13:12:37,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:12:37,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 459 [2024-12-02 13:12:37,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:12:37,676 INFO L225 Difference]: With dead ends: 254237 [2024-12-02 13:12:37,677 INFO L226 Difference]: Without dead ends: 133721 [2024-12-02 13:12:37,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:12:37,950 INFO L435 NwaCegarLoop]: 4833 mSDtfsCounter, 2044 mSDsluCounter, 12392 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2044 SdHoareTripleChecker+Valid, 17225 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:12:37,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2044 Valid, 17225 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2024-12-02 13:12:38,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133721 states. [2024-12-02 13:12:44,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133721 to 133691. [2024-12-02 13:12:44,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133691 states, 98807 states have (on average 1.283056868440495) internal successors, (126775), 100150 states have internal predecessors, (126775), 26976 states have call successors, (26976), 7949 states have call predecessors, (26976), 7907 states have return successors, (27084), 26779 states have call predecessors, (27084), 26976 states have call successors, (27084) [2024-12-02 13:12:44,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133691 states to 133691 states and 180835 transitions. [2024-12-02 13:12:45,060 INFO L78 Accepts]: Start accepts. Automaton has 133691 states and 180835 transitions. Word has length 459 [2024-12-02 13:12:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:12:45,061 INFO L471 AbstractCegarLoop]: Abstraction has 133691 states and 180835 transitions. [2024-12-02 13:12:45,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 4 states have internal predecessors, (180), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:12:45,061 INFO L276 IsEmpty]: Start isEmpty. Operand 133691 states and 180835 transitions. [2024-12-02 13:12:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-12-02 13:12:45,077 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:12:45,077 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 14, 14, 14, 8, 8, 8, 8, 8, 8, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:12:45,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 13:12:45,077 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)] === [2024-12-02 13:12:45,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:12:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1781394771, now seen corresponding path program 1 times [2024-12-02 13:12:45,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:12:45,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870922036] [2024-12-02 13:12:45,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:12:45,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:12:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:12:50,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 1195 trivial. 0 not checked. [2024-12-02 13:12:50,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:12:50,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870922036] [2024-12-02 13:12:50,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870922036] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:12:50,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:12:50,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:12:50,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242621277] [2024-12-02 13:12:50,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:12:50,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:12:50,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:12:50,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:12:50,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:12:50,897 INFO L87 Difference]: Start difference. First operand 133691 states and 180835 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:12:54,950 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 [] [2024-12-02 13:13:04,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:13:04,397 INFO L93 Difference]: Finished difference Result 280227 states and 379193 transitions. [2024-12-02 13:13:04,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:13:04,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) Word has length 460 [2024-12-02 13:13:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:13:04,986 INFO L225 Difference]: With dead ends: 280227 [2024-12-02 13:13:04,986 INFO L226 Difference]: Without dead ends: 146632 [2024-12-02 13:13:05,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:13:05,267 INFO L435 NwaCegarLoop]: 4833 mSDtfsCounter, 2030 mSDsluCounter, 12401 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 17234 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:13:05,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 17234 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 13:13:05,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146632 states. [2024-12-02 13:13:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146632 to 146602. [2024-12-02 13:13:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146602 states, 108397 states have (on average 1.2833934518482983) internal successors, (139116), 109864 states have internal predecessors, (139116), 29544 states have call successors, (29544), 8705 states have call predecessors, (29544), 8660 states have return successors, (29655), 29334 states have call predecessors, (29655), 29544 states have call successors, (29655) [2024-12-02 13:13:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146602 states to 146602 states and 198315 transitions. [2024-12-02 13:13:15,732 INFO L78 Accepts]: Start accepts. Automaton has 146602 states and 198315 transitions. Word has length 460 [2024-12-02 13:13:15,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:13:15,733 INFO L471 AbstractCegarLoop]: Abstraction has 146602 states and 198315 transitions. [2024-12-02 13:13:15,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 4 states have internal predecessors, (181), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (46), 4 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:13:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 146602 states and 198315 transitions. [2024-12-02 13:13:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-12-02 13:13:15,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:13:15,750 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 14, 14, 14, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:13:15,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 13:13:15,751 INFO L396 AbstractCegarLoop]: === Iteration 29 === 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)] === [2024-12-02 13:13:15,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:13:15,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1659903506, now seen corresponding path program 1 times [2024-12-02 13:13:15,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:13:15,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267827432] [2024-12-02 13:13:15,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:13:15,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:13:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:13:20,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1369 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1290 trivial. 0 not checked. [2024-12-02 13:13:20,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:13:20,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267827432] [2024-12-02 13:13:20,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267827432] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:13:20,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:13:20,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:13:20,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794353885] [2024-12-02 13:13:20,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:13:20,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:13:20,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:13:20,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:13:20,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:13:20,484 INFO L87 Difference]: Start difference. First operand 146602 states and 198315 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:13:24,527 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 [] [2024-12-02 13:13:33,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:13:33,781 INFO L93 Difference]: Finished difference Result 307291 states and 415626 transitions. [2024-12-02 13:13:33,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:13:33,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 475 [2024-12-02 13:13:33,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:13:34,557 INFO L225 Difference]: With dead ends: 307291 [2024-12-02 13:13:34,557 INFO L226 Difference]: Without dead ends: 160785 [2024-12-02 13:13:34,868 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 [2024-12-02 13:13:34,868 INFO L435 NwaCegarLoop]: 4849 mSDtfsCounter, 2084 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 7589 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:13:34,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 7589 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 13:13:35,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160785 states. [2024-12-02 13:13:43,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160785 to 160779. [2024-12-02 13:13:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160779 states, 118848 states have (on average 1.2833871836295099) internal successors, (152528), 120469 states have internal predecessors, (152528), 32379 states have call successors, (32379), 9605 states have call predecessors, (32379), 9551 states have return successors, (32493), 32150 states have call predecessors, (32493), 32379 states have call successors, (32493) [2024-12-02 13:13:44,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160779 states to 160779 states and 217400 transitions. [2024-12-02 13:13:44,429 INFO L78 Accepts]: Start accepts. Automaton has 160779 states and 217400 transitions. Word has length 475 [2024-12-02 13:13:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:13:44,430 INFO L471 AbstractCegarLoop]: Abstraction has 160779 states and 217400 transitions. [2024-12-02 13:13:44,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:13:44,430 INFO L276 IsEmpty]: Start isEmpty. Operand 160779 states and 217400 transitions. [2024-12-02 13:13:44,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2024-12-02 13:13:44,472 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:13:44,472 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 14, 14, 14, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:13:44,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 13:13:44,472 INFO L396 AbstractCegarLoop]: === Iteration 30 === 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)] === [2024-12-02 13:13:44,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:13:44,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1443766959, now seen corresponding path program 1 times [2024-12-02 13:13:44,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:13:44,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849543543] [2024-12-02 13:13:44,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:13:44,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:13:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:13:49,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1392 backedges. 78 proven. 15 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2024-12-02 13:13:49,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:13:49,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849543543] [2024-12-02 13:13:49,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849543543] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:13:49,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357775436] [2024-12-02 13:13:49,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:13:49,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:13:49,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:13:49,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:13:49,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:13:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:13:55,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 4281 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 13:13:55,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:13:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1392 backedges. 381 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2024-12-02 13:13:56,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:13:56,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357775436] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:13:56,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:13:56,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 13:13:56,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423403600] [2024-12-02 13:13:56,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:13:56,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:13:56,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:13:56,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:13:56,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:13:56,290 INFO L87 Difference]: Start difference. First operand 160779 states and 217400 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:14:00,327 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 [] [2024-12-02 13:14:09,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:14:09,713 INFO L93 Difference]: Finished difference Result 334583 states and 452585 transitions. [2024-12-02 13:14:09,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:14:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 482 [2024-12-02 13:14:09,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:14:10,644 INFO L225 Difference]: With dead ends: 334583 [2024-12-02 13:14:10,644 INFO L226 Difference]: Without dead ends: 173900 [2024-12-02 13:14:10,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:14:10,885 INFO L435 NwaCegarLoop]: 4340 mSDtfsCounter, 2578 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:14:10,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 6574 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:14:10,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173900 states. [2024-12-02 13:14:21,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173900 to 173894. [2024-12-02 13:14:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173894 states, 128618 states have (on average 1.2841670683730115) internal successors, (165167), 130363 states have internal predecessors, (165167), 34959 states have call successors, (34959), 10373 states have call predecessors, (34959), 10316 states have return successors, (35076), 34717 states have call predecessors, (35076), 34959 states have call successors, (35076) [2024-12-02 13:14:22,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173894 states to 173894 states and 235202 transitions. [2024-12-02 13:14:22,380 INFO L78 Accepts]: Start accepts. Automaton has 173894 states and 235202 transitions. Word has length 482 [2024-12-02 13:14:22,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:14:22,381 INFO L471 AbstractCegarLoop]: Abstraction has 173894 states and 235202 transitions. [2024-12-02 13:14:22,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-12-02 13:14:22,381 INFO L276 IsEmpty]: Start isEmpty. Operand 173894 states and 235202 transitions. [2024-12-02 13:14:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-12-02 13:14:22,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:14:22,401 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 15, 15, 15, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:14:22,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:14:22,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acadcb34-3880-428b-869b-e5778d2d4630/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:14:22,602 INFO L396 AbstractCegarLoop]: === Iteration 31 === 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)] === [2024-12-02 13:14:22,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:14:22,603 INFO L85 PathProgramCache]: Analyzing trace with hash 454289379, now seen corresponding path program 1 times [2024-12-02 13:14:22,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:14:22,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151738983] [2024-12-02 13:14:22,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:14:22,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:14:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:14:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1456 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 1371 trivial. 0 not checked. [2024-12-02 13:14:27,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:14:27,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151738983] [2024-12-02 13:14:27,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151738983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:14:27,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:14:27,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:14:27,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418184635] [2024-12-02 13:14:27,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:14:27,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:14:27,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:14:27,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:14:27,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:14:27,284 INFO L87 Difference]: Start difference. First operand 173894 states and 235202 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 13:14:31,326 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 [] [2024-12-02 13:14:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:14:41,393 INFO L93 Difference]: Finished difference Result 360573 states and 487819 transitions. [2024-12-02 13:14:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:14:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 497 [2024-12-02 13:14:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:14:42,549 INFO L225 Difference]: With dead ends: 360573 [2024-12-02 13:14:42,549 INFO L226 Difference]: Without dead ends: 186775 [2024-12-02 13:14:42,876 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 [2024-12-02 13:14:42,876 INFO L435 NwaCegarLoop]: 4836 mSDtfsCounter, 2041 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 7572 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:14:42,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 7572 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 13:14:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186775 states. [2024-12-02 13:14:52,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186775 to 186769. [2024-12-02 13:14:52,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186769 states, 138172 states have (on average 1.2844281041021335) internal successors, (177472), 140041 states have internal predecessors, (177472), 37527 states have call successors, (37527), 11129 states have call predecessors, (37527), 11069 states have return successors, (37647), 37272 states have call predecessors, (37647), 37527 states have call successors, (37647) [2024-12-02 13:14:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186769 states to 186769 states and 252646 transitions. [2024-12-02 13:14:52,813 INFO L78 Accepts]: Start accepts. Automaton has 186769 states and 252646 transitions. Word has length 497 [2024-12-02 13:14:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:14:52,813 INFO L471 AbstractCegarLoop]: Abstraction has 186769 states and 252646 transitions. [2024-12-02 13:14:52,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-12-02 13:14:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 186769 states and 252646 transitions. [2024-12-02 13:14:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-12-02 13:14:52,833 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:14:52,834 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:14:52,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-12-02 13:14:52,834 INFO L396 AbstractCegarLoop]: === Iteration 32 === 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)] === [2024-12-02 13:14:52,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:14:52,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1366374820, now seen corresponding path program 1 times [2024-12-02 13:14:52,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:14:52,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655806352] [2024-12-02 13:14:52,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:14:52,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:14:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:14:57,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 1514 trivial. 0 not checked. [2024-12-02 13:14:57,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:14:57,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655806352] [2024-12-02 13:14:57,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655806352] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:14:57,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:14:57,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:14:57,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259747032] [2024-12-02 13:14:57,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:14:57,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:14:57,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:14:57,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:14:57,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:14:57,620 INFO L87 Difference]: Start difference. First operand 186769 states and 252646 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 4 states have internal predecessors, (189), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2024-12-02 13:15:01,662 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 [] [2024-12-02 13:15:12,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:15:12,619 INFO L93 Difference]: Finished difference Result 391339 states and 529124 transitions. [2024-12-02 13:15:12,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:15:12,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 4 states have internal predecessors, (189), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) Word has length 515 [2024-12-02 13:15:12,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:15:13,436 INFO L225 Difference]: With dead ends: 391339 [2024-12-02 13:15:13,436 INFO L226 Difference]: Without dead ends: 204666 [2024-12-02 13:15:13,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:15:13,765 INFO L435 NwaCegarLoop]: 4390 mSDtfsCounter, 2118 mSDsluCounter, 11474 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2118 SdHoareTripleChecker+Valid, 15864 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:15:13,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2118 Valid, 15864 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 13:15:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204666 states. [2024-12-02 13:15:22,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204666 to 191809. [2024-12-02 13:15:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191809 states, 141730 states have (on average 1.2832780639243633) internal successors, (181879), 143629 states have internal predecessors, (181879), 38562 states have call successors, (38562), 11570 states have call predecessors, (38562), 11516 states have return successors, (38694), 38313 states have call predecessors, (38694), 38562 states have call successors, (38694) [2024-12-02 13:15:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191809 states to 191809 states and 259135 transitions. [2024-12-02 13:15:23,722 INFO L78 Accepts]: Start accepts. Automaton has 191809 states and 259135 transitions. Word has length 515 [2024-12-02 13:15:23,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:15:23,723 INFO L471 AbstractCegarLoop]: Abstraction has 191809 states and 259135 transitions. [2024-12-02 13:15:23,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 4 states have internal predecessors, (189), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2024-12-02 13:15:23,723 INFO L276 IsEmpty]: Start isEmpty. Operand 191809 states and 259135 transitions. [2024-12-02 13:15:23,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2024-12-02 13:15:23,754 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:15:23,755 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:15:23,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-12-02 13:15:23,755 INFO L396 AbstractCegarLoop]: === Iteration 33 === 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)] === [2024-12-02 13:15:23,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:15:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash -163180673, now seen corresponding path program 1 times [2024-12-02 13:15:23,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:15:23,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271224761] [2024-12-02 13:15:23,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:15:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:15:27,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:15:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1621 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 1515 trivial. 0 not checked. [2024-12-02 13:15:28,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:15:28,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271224761] [2024-12-02 13:15:28,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271224761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:15:28,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:15:28,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:15:28,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277440194] [2024-12-02 13:15:28,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:15:28,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:15:28,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:15:28,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:15:28,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:15:28,464 INFO L87 Difference]: Start difference. First operand 191809 states and 259135 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 4 states have internal predecessors, (189), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 4 states have call predecessors, (47), 3 states have call successors, (47) [2024-12-02 13:15:32,509 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 []