./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-8390-axnet_cs.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC --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 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:46:36,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:46:36,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:46:36,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:46:36,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:46:36,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:46:36,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:46:36,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:46:36,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:46:36,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:46:36,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:46:36,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:46:36,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:46:36,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:46:36,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:46:36,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:46:36,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:46:36,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:46:36,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:46:36,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:46:36,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:46:36,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:46:36,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:46:36,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:46:36,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:46:36,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:46:36,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:46:36,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:46:36,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:46:36,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:46:36,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:46:36,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:46:36,316 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC 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 -> 6b81be647295ba0700d02fa1d093d31284b02ba80deefc4d677fbd988693200b [2024-11-24 01:46:36,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:46:36,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:46:36,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:46:36,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:46:36,687 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:46:36,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2024-11-24 01:46:39,608 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/data/cc3a8e193/0bebd6d6ba1c41d2b2ec795fd24343d0/FLAGf1b56cca3 [2024-11-24 01:46:40,443 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:46:40,444 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2024-11-24 01:46:40,517 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/data/cc3a8e193/0bebd6d6ba1c41d2b2ec795fd24343d0/FLAGf1b56cca3 [2024-11-24 01:46:40,537 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/data/cc3a8e193/0bebd6d6ba1c41d2b2ec795fd24343d0 [2024-11-24 01:46:40,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:46:40,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:46:40,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:46:40,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:46:40,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:46:40,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:46:40" (1/1) ... [2024-11-24 01:46:40,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f07c66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:40, skipping insertion in model container [2024-11-24 01:46:40,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:46:40" (1/1) ... [2024-11-24 01:46:40,697 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:46:43,293 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2024-11-24 01:46:43,297 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2024-11-24 01:46:43,298 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2024-11-24 01:46:43,299 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2024-11-24 01:46:43,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:46:43,377 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:46:43,547 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"); [5461] [2024-11-24 01:46:43,549 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)); [5468] [2024-11-24 01:46:43,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5475] [2024-11-24 01:46:43,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5569] [2024-11-24 01:46:43,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5577] [2024-11-24 01:46:43,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5608] [2024-11-24 01:46:43,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [5615] [2024-11-24 01:46:43,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [5622] [2024-11-24 01:46:43,862 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315060,315073] [2024-11-24 01:46:43,863 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315229,315242] [2024-11-24 01:46:43,863 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315396,315409] [2024-11-24 01:46:43,865 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_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i[315564,315577] [2024-11-24 01:46:43,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:46:44,081 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:46:44,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44 WrapperNode [2024-11-24 01:46:44,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:46:44,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:46:44,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:46:44,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:46:44,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:44,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:44,450 INFO L138 Inliner]: procedures = 369, calls = 2290, calls flagged for inlining = 174, calls inlined = 154, statements flattened = 4597 [2024-11-24 01:46:44,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:46:44,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:46:44,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:46:44,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:46:44,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:44,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:44,495 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,159 INFO L175 MemorySlicer]: Split 1230 memory accesses to 11 slices as follows [1, 7, 2, 52, 1037, 1, 35, 56, 28, 6, 5]. 84 percent of accesses are in the largest equivalence class. The 165 initializations are split as follows [1, 0, 2, 0, 151, 0, 0, 0, 0, 6, 5]. The 816 writes are split as follows [0, 6, 0, 48, 658, 0, 30, 48, 26, 0, 0]. [2024-11-24 01:46:45,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,256 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:46:45,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:46:45,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:46:45,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:46:45,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (1/1) ... [2024-11-24 01:46:45,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:46:45,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:46:45,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:46:45,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc6e30f9-ca15-44fe-a8ab-212c33162cc1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:46:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_page_lock_of_ei_device [2024-11-24 01:46:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_page_lock_of_ei_device [2024-11-24 01:46:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 01:46:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 01:46:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 01:46:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 01:46:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 01:46:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 01:46:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 01:46:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 01:46:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 01:46:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 01:46:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-24 01:46:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_detach [2024-11-24 01:46:45,511 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_detach [2024-11-24 01:46:45,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:46:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:46:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:46:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:46:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-24 01:46:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-24 01:46:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure AX88190_init [2024-11-24 01:46:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure AX88190_init [2024-11-24 01:46:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2024-11-24 01:46:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~TO~VOID [2024-11-24 01:46:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:46:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:46:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2024-11-24 01:46:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2024-11-24 01:46:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-24 01:46:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-24 01:46:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_70 [2024-11-24 01:46:45,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_70 [2024-11-24 01:46:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-24 01:46:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure ei_receive [2024-11-24 01:46:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_receive [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-24 01:46:45,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-24 01:46:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-24 01:46:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-24 01:46:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-24 01:46:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_axnet_cs_driver_exit_14_2 [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_axnet_cs_driver_exit_14_2 [2024-11-24 01:46:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-24 01:46:45,520 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_release [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_release [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_write_config_byte [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_write_config_byte [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:46:45,521 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-24 01:46:45,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-24 01:46:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:46:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:46:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:46:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:46:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:46:45,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-24 01:46:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-24 01:46:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2024-11-24 01:46:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-24 01:46:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure NS8390_trigger_send [2024-11-24 01:46:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure NS8390_trigger_send [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure ei_tx_intr [2024-11-24 01:46:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_tx_intr [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:46:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 01:46:45,526 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-24 01:46:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-24 01:46:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-24 01:46:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-24 01:46:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-24 01:46:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-24 01:46:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 01:46:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2024-11-24 01:46:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:46:45,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 01:46:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 01:46:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 01:46:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-24 01:46:45,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-24 01:46:45,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:46:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-24 01:46:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure ei_irq_wrapper [2024-11-24 01:46:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ei_irq_wrapper [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-24 01:46:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-24 01:46:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-24 01:46:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:46:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_reset_8390 [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_reset_8390 [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_tx_timeout [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_tx_timeout [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure axnet_cs_driver_exit [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure axnet_cs_driver_exit [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-24 01:46:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-24 01:46:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-24 01:46:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:46:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:46:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:46:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:46:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:46:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:46:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:46:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:46:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:46:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:46:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:46:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 01:46:45,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 01:46:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-24 01:46:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-24 01:46:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-24 01:46:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-24 01:46:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2024-11-24 01:46:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2024-11-24 01:46:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-24 01:46:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-24 01:46:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure do_set_multicast_list [2024-11-24 01:46:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure do_set_multicast_list [2024-11-24 01:46:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:46:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-24 01:46:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-24 01:46:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-24 01:46:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-24 01:46:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:46:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:46:46,443 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:46:46,447 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:46:46,806 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:47:02,270 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-24 01:47:03,220 INFO L? ?]: Removed 1685 outVars from TransFormulas that were not future-live. [2024-11-24 01:47:03,220 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:47:03,286 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:47:03,286 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:47:03,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:47:03 BoogieIcfgContainer [2024-11-24 01:47:03,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:47:03,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:47:03,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:47:03,298 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:47:03,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:46:40" (1/3) ... [2024-11-24 01:47:03,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c49fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:47:03, skipping insertion in model container [2024-11-24 01:47:03,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:46:44" (2/3) ... [2024-11-24 01:47:03,303 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c49fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:47:03, skipping insertion in model container [2024-11-24 01:47:03,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:47:03" (3/3) ... [2024-11-24 01:47:03,304 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i [2024-11-24 01:47:03,336 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:47:03,339 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-8390-axnet_cs.cil.i that has 73 procedures, 1551 locations, 1 initial locations, 13 loop locations, and 3 error locations. [2024-11-24 01:47:03,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:47:03,551 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;@67d25ff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:47:03,551 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-24 01:47:03,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 1509 states, 1046 states have (on average 1.3307839388145315) internal successors, (1392), 1070 states have internal predecessors, (1392), 400 states have call successors, (400), 62 states have call predecessors, (400), 61 states have return successors, (394), 386 states have call predecessors, (394), 394 states have call successors, (394) [2024-11-24 01:47:03,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-24 01:47:03,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:03,592 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:03,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:47:03,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash 68996291, now seen corresponding path program 1 times [2024-11-24 01:47:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:03,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991656425] [2024-11-24 01:47:03,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:03,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-24 01:47:29,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:29,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991656425] [2024-11-24 01:47:29,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991656425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:29,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:29,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:47:29,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447661608] [2024-11-24 01:47:29,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:29,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:29,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:29,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:29,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:29,340 INFO L87 Difference]: Start difference. First operand has 1509 states, 1046 states have (on average 1.3307839388145315) internal successors, (1392), 1070 states have internal predecessors, (1392), 400 states have call successors, (400), 62 states have call predecessors, (400), 61 states have return successors, (394), 386 states have call predecessors, (394), 394 states have call successors, (394) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:47:33,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:47:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:47:34,764 INFO L93 Difference]: Finished difference Result 4396 states and 6457 transitions. [2024-11-24 01:47:34,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:47:34,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2024-11-24 01:47:34,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:47:34,825 INFO L225 Difference]: With dead ends: 4396 [2024-11-24 01:47:34,825 INFO L226 Difference]: Without dead ends: 2896 [2024-11-24 01:47:34,847 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 [2024-11-24 01:47:34,850 INFO L435 NwaCegarLoop]: 2183 mSDtfsCounter, 2051 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2051 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:47:34,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2051 Valid, 4296 Invalid, 34 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 26 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-24 01:47:34,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2024-11-24 01:47:35,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2892. [2024-11-24 01:47:35,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2024 states have (on average 1.3226284584980237) internal successors, (2677), 2069 states have internal predecessors, (2677), 747 states have call successors, (747), 119 states have call predecessors, (747), 118 states have return successors, (743), 727 states have call predecessors, (743), 743 states have call successors, (743) [2024-11-24 01:47:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 4167 transitions. [2024-11-24 01:47:35,267 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 4167 transitions. Word has length 105 [2024-11-24 01:47:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:47:35,267 INFO L471 AbstractCegarLoop]: Abstraction has 2892 states and 4167 transitions. [2024-11-24 01:47:35,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:47:35,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 4167 transitions. [2024-11-24 01:47:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 01:47:35,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:47:35,279 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:47:35,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:47:35,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:47:35,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:47:35,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1986942353, now seen corresponding path program 1 times [2024-11-24 01:47:35,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:47:35,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425859825] [2024-11-24 01:47:35,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:47:35,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:47:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:47:58,006 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-24 01:47:58,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:47:58,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425859825] [2024-11-24 01:47:58,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425859825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:47:58,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:47:58,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:47:58,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272062518] [2024-11-24 01:47:58,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:47:58,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:47:58,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:47:58,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:47:58,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:47:58,013 INFO L87 Difference]: Start difference. First operand 2892 states and 4167 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:48:02,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:48:03,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:03,884 INFO L93 Difference]: Finished difference Result 8130 states and 11693 transitions. [2024-11-24 01:48:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:48:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2024-11-24 01:48:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:03,929 INFO L225 Difference]: With dead ends: 8130 [2024-11-24 01:48:03,929 INFO L226 Difference]: Without dead ends: 5257 [2024-11-24 01:48:03,946 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 [2024-11-24 01:48:03,947 INFO L435 NwaCegarLoop]: 2273 mSDtfsCounter, 1743 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 4359 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:03,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 4359 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-11-24 01:48:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2024-11-24 01:48:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 5226. [2024-11-24 01:48:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5226 states, 3650 states have (on average 1.3197260273972602) internal successors, (4817), 3732 states have internal predecessors, (4817), 1342 states have call successors, (1342), 230 states have call predecessors, (1342), 231 states have return successors, (1344), 1309 states have call predecessors, (1344), 1338 states have call successors, (1344) [2024-11-24 01:48:04,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 7503 transitions. [2024-11-24 01:48:04,347 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 7503 transitions. Word has length 114 [2024-11-24 01:48:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:04,350 INFO L471 AbstractCegarLoop]: Abstraction has 5226 states and 7503 transitions. [2024-11-24 01:48:04,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 01:48:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 7503 transitions. [2024-11-24 01:48:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:48:04,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:04,355 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:04,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:48:04,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:48:04,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:04,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1178193363, now seen corresponding path program 1 times [2024-11-24 01:48:04,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:04,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827402744] [2024-11-24 01:48:04,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:04,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-24 01:48:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827402744] [2024-11-24 01:48:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827402744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:26,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:48:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576349054] [2024-11-24 01:48:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:48:26,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:26,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:48:26,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:48:26,757 INFO L87 Difference]: Start difference. First operand 5226 states and 7503 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:48:30,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:48:32,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:48:32,207 INFO L93 Difference]: Finished difference Result 14108 states and 20101 transitions. [2024-11-24 01:48:32,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:48:32,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2024-11-24 01:48:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:48:32,284 INFO L225 Difference]: With dead ends: 14108 [2024-11-24 01:48:32,287 INFO L226 Difference]: Without dead ends: 8901 [2024-11-24 01:48:32,320 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 [2024-11-24 01:48:32,321 INFO L435 NwaCegarLoop]: 2186 mSDtfsCounter, 1604 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 4279 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:48:32,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 4279 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-24 01:48:32,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8901 states. [2024-11-24 01:48:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8901 to 8868. [2024-11-24 01:48:32,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8868 states, 6142 states have (on average 1.2984369912080755) internal successors, (7975), 6280 states have internal predecessors, (7975), 2292 states have call successors, (2292), 434 states have call predecessors, (2292), 431 states have return successors, (2300), 2219 states have call predecessors, (2300), 2288 states have call successors, (2300) [2024-11-24 01:48:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8868 states to 8868 states and 12567 transitions. [2024-11-24 01:48:32,941 INFO L78 Accepts]: Start accepts. Automaton has 8868 states and 12567 transitions. Word has length 119 [2024-11-24 01:48:32,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:48:32,942 INFO L471 AbstractCegarLoop]: Abstraction has 8868 states and 12567 transitions. [2024-11-24 01:48:32,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:48:32,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8868 states and 12567 transitions. [2024-11-24 01:48:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 01:48:32,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:48:32,948 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:48:32,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:48:32,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:48:32,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:48:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1777335929, now seen corresponding path program 1 times [2024-11-24 01:48:32,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:48:32,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610813826] [2024-11-24 01:48:32,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:48:32,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:48:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:48:56,248 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-24 01:48:56,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:48:56,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610813826] [2024-11-24 01:48:56,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610813826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:48:56,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:48:56,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:48:56,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269517102] [2024-11-24 01:48:56,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:48:56,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:48:56,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:48:56,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:48:56,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:48:56,253 INFO L87 Difference]: Start difference. First operand 8868 states and 12567 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-24 01:49:00,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:49:02,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:02,325 INFO L93 Difference]: Finished difference Result 15605 states and 22036 transitions. [2024-11-24 01:49:02,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:49:02,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2024-11-24 01:49:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:02,376 INFO L225 Difference]: With dead ends: 15605 [2024-11-24 01:49:02,377 INFO L226 Difference]: Without dead ends: 6756 [2024-11-24 01:49:02,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:49:02,420 INFO L435 NwaCegarLoop]: 2911 mSDtfsCounter, 1931 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:02,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1931 Valid, 3972 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 72 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2024-11-24 01:49:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2024-11-24 01:49:02,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 6705. [2024-11-24 01:49:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6705 states, 4672 states have (on average 1.2799657534246576) internal successors, (5980), 4816 states have internal predecessors, (5980), 1675 states have call successors, (1675), 394 states have call predecessors, (1675), 355 states have return successors, (1707), 1529 states have call predecessors, (1707), 1671 states have call successors, (1707) [2024-11-24 01:49:02,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6705 states to 6705 states and 9362 transitions. [2024-11-24 01:49:02,829 INFO L78 Accepts]: Start accepts. Automaton has 6705 states and 9362 transitions. Word has length 143 [2024-11-24 01:49:02,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:02,830 INFO L471 AbstractCegarLoop]: Abstraction has 6705 states and 9362 transitions. [2024-11-24 01:49:02,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-24 01:49:02,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6705 states and 9362 transitions. [2024-11-24 01:49:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-24 01:49:02,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:02,837 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 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] [2024-11-24 01:49:02,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:49:02,838 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:49:02,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash 401957179, now seen corresponding path program 1 times [2024-11-24 01:49:02,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:02,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100216818] [2024-11-24 01:49:02,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:02,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 01:49:30,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:30,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100216818] [2024-11-24 01:49:30,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100216818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:30,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:30,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:30,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736534743] [2024-11-24 01:49:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:30,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:49:30,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:30,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:49:30,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:49:30,509 INFO L87 Difference]: Start difference. First operand 6705 states and 9362 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:49:31,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:31,353 INFO L93 Difference]: Finished difference Result 6711 states and 9367 transitions. [2024-11-24 01:49:31,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:49:31,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 161 [2024-11-24 01:49:31,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:31,423 INFO L225 Difference]: With dead ends: 6711 [2024-11-24 01:49:31,423 INFO L226 Difference]: Without dead ends: 6709 [2024-11-24 01:49:31,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:49:31,431 INFO L435 NwaCegarLoop]: 2146 mSDtfsCounter, 2102 mSDsluCounter, 4279 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 6425 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:31,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 6425 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:49:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2024-11-24 01:49:31,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 6709. [2024-11-24 01:49:31,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6709 states, 4675 states have (on average 1.2797860962566845) internal successors, (5983), 4819 states have internal predecessors, (5983), 1675 states have call successors, (1675), 395 states have call predecessors, (1675), 356 states have return successors, (1707), 1529 states have call predecessors, (1707), 1671 states have call successors, (1707) [2024-11-24 01:49:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6709 states to 6709 states and 9365 transitions. [2024-11-24 01:49:31,908 INFO L78 Accepts]: Start accepts. Automaton has 6709 states and 9365 transitions. Word has length 161 [2024-11-24 01:49:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:31,909 INFO L471 AbstractCegarLoop]: Abstraction has 6709 states and 9365 transitions. [2024-11-24 01:49:31,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-24 01:49:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6709 states and 9365 transitions. [2024-11-24 01:49:31,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-24 01:49:31,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:31,916 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:49:31,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:49:31,916 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:49:31,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash 916591445, now seen corresponding path program 1 times [2024-11-24 01:49:31,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:31,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977788614] [2024-11-24 01:49:31,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:31,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:00,103 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 01:50:00,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:00,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977788614] [2024-11-24 01:50:00,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977788614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:00,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:00,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:50:00,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842692798] [2024-11-24 01:50:00,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:00,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:50:00,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:00,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:50:00,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:00,106 INFO L87 Difference]: Start difference. First operand 6709 states and 9365 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:50:00,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:00,963 INFO L93 Difference]: Finished difference Result 6715 states and 9370 transitions. [2024-11-24 01:50:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:50:00,964 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 166 [2024-11-24 01:50:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:01,032 INFO L225 Difference]: With dead ends: 6715 [2024-11-24 01:50:01,032 INFO L226 Difference]: Without dead ends: 6713 [2024-11-24 01:50:01,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:50:01,039 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2098 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:01,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:50:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6713 states. [2024-11-24 01:50:01,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6713 to 6713. [2024-11-24 01:50:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6713 states, 4678 states have (on average 1.2796066695168875) internal successors, (5986), 4822 states have internal predecessors, (5986), 1675 states have call successors, (1675), 396 states have call predecessors, (1675), 357 states have return successors, (1707), 1529 states have call predecessors, (1707), 1671 states have call successors, (1707) [2024-11-24 01:50:01,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6713 states to 6713 states and 9368 transitions. [2024-11-24 01:50:01,534 INFO L78 Accepts]: Start accepts. Automaton has 6713 states and 9368 transitions. Word has length 166 [2024-11-24 01:50:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:01,535 INFO L471 AbstractCegarLoop]: Abstraction has 6713 states and 9368 transitions. [2024-11-24 01:50:01,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-24 01:50:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 6713 states and 9368 transitions. [2024-11-24 01:50:01,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-24 01:50:01,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:01,544 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:50:01,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:50:01,544 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:50:01,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1318041915, now seen corresponding path program 1 times [2024-11-24 01:50:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576939500] [2024-11-24 01:50:01,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:30,962 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-24 01:50:30,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:50:30,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576939500] [2024-11-24 01:50:30,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576939500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:30,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:30,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:50:30,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246587669] [2024-11-24 01:50:30,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:30,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:50:30,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:50:30,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:50:30,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:30,965 INFO L87 Difference]: Start difference. First operand 6713 states and 9368 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:50:31,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:31,775 INFO L93 Difference]: Finished difference Result 6719 states and 9373 transitions. [2024-11-24 01:50:31,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:50:31,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 171 [2024-11-24 01:50:31,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:31,825 INFO L225 Difference]: With dead ends: 6719 [2024-11-24 01:50:31,825 INFO L226 Difference]: Without dead ends: 6717 [2024-11-24 01:50:31,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:50:31,833 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2097 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2098 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:31,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2098 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:50:31,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2024-11-24 01:50:32,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 6717. [2024-11-24 01:50:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 4681 states have (on average 1.2794274727622303) internal successors, (5989), 4825 states have internal predecessors, (5989), 1675 states have call successors, (1675), 397 states have call predecessors, (1675), 358 states have return successors, (1707), 1529 states have call predecessors, (1707), 1671 states have call successors, (1707) [2024-11-24 01:50:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 9371 transitions. [2024-11-24 01:50:32,403 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 9371 transitions. Word has length 171 [2024-11-24 01:50:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:32,404 INFO L471 AbstractCegarLoop]: Abstraction has 6717 states and 9371 transitions. [2024-11-24 01:50:32,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:50:32,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 9371 transitions. [2024-11-24 01:50:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 01:50:32,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:32,409 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:50:32,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:50:32,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:50:32,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:32,410 INFO L85 PathProgramCache]: Analyzing trace with hash 989391573, now seen corresponding path program 1 times [2024-11-24 01:50:32,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:32,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277552778] [2024-11-24 01:50:32,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:32,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-24 01:51:00,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:51:00,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277552778] [2024-11-24 01:51:00,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277552778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:51:00,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:51:00,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:51:00,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141573439] [2024-11-24 01:51:00,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:51:00,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:51:00,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:51:00,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:51:00,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:51:00,411 INFO L87 Difference]: Start difference. First operand 6717 states and 9371 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-24 01:51:01,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:01,237 INFO L93 Difference]: Finished difference Result 6723 states and 9376 transitions. [2024-11-24 01:51:01,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:51:01,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 176 [2024-11-24 01:51:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:01,282 INFO L225 Difference]: With dead ends: 6723 [2024-11-24 01:51:01,282 INFO L226 Difference]: Without dead ends: 6721 [2024-11-24 01:51:01,288 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 [2024-11-24 01:51:01,289 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2096 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2097 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:51:01,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2097 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:51:01,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2024-11-24 01:51:01,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6721. [2024-11-24 01:51:01,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 4684 states have (on average 1.2792485055508114) internal successors, (5992), 4828 states have internal predecessors, (5992), 1675 states have call successors, (1675), 398 states have call predecessors, (1675), 359 states have return successors, (1707), 1529 states have call predecessors, (1707), 1671 states have call successors, (1707) [2024-11-24 01:51:01,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9374 transitions. [2024-11-24 01:51:01,798 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9374 transitions. Word has length 176 [2024-11-24 01:51:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:51:01,805 INFO L471 AbstractCegarLoop]: Abstraction has 6721 states and 9374 transitions. [2024-11-24 01:51:01,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-24 01:51:01,805 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9374 transitions. [2024-11-24 01:51:01,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 01:51:01,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:01,809 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:51:01,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:51:01,810 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:51:01,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:01,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1284358459, now seen corresponding path program 1 times [2024-11-24 01:51:01,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:51:01,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128891762] [2024-11-24 01:51:01,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:01,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:51:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-24 01:51:30,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:51:30,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128891762] [2024-11-24 01:51:30,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128891762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:51:30,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:51:30,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:51:30,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267868913] [2024-11-24 01:51:30,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:51:30,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:51:30,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:51:30,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:51:30,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:51:30,375 INFO L87 Difference]: Start difference. First operand 6721 states and 9374 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:51:31,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:31,162 INFO L93 Difference]: Finished difference Result 6727 states and 9379 transitions. [2024-11-24 01:51:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:51:31,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 181 [2024-11-24 01:51:31,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:31,208 INFO L225 Difference]: With dead ends: 6727 [2024-11-24 01:51:31,209 INFO L226 Difference]: Without dead ends: 6725 [2024-11-24 01:51:31,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:51:31,215 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2095 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:51:31,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:51:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6725 states. [2024-11-24 01:51:31,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6725 to 6725. [2024-11-24 01:51:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 4687 states have (on average 1.2790697674418605) internal successors, (5995), 4831 states have internal predecessors, (5995), 1675 states have call successors, (1675), 399 states have call predecessors, (1675), 360 states have return successors, (1707), 1529 states have call predecessors, (1707), 1671 states have call successors, (1707) [2024-11-24 01:51:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 9377 transitions. [2024-11-24 01:51:31,859 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 9377 transitions. Word has length 181 [2024-11-24 01:51:31,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:51:31,860 INFO L471 AbstractCegarLoop]: Abstraction has 6725 states and 9377 transitions. [2024-11-24 01:51:31,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:51:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 9377 transitions. [2024-11-24 01:51:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-24 01:51:31,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:31,865 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:51:31,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:51:31,866 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:51:31,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:31,866 INFO L85 PathProgramCache]: Analyzing trace with hash 2014479402, now seen corresponding path program 1 times [2024-11-24 01:51:31,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:51:31,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030520815] [2024-11-24 01:51:31,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:31,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:52:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:52:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-24 01:52:01,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:52:01,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030520815] [2024-11-24 01:52:01,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030520815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:52:01,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:52:01,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:52:01,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444927083] [2024-11-24 01:52:01,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:52:01,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:52:01,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:52:01,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:52:01,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:52:01,666 INFO L87 Difference]: Start difference. First operand 6725 states and 9377 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-24 01:52:05,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:52:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:52:07,256 INFO L93 Difference]: Finished difference Result 19550 states and 27318 transitions. [2024-11-24 01:52:07,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:52:07,256 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 201 [2024-11-24 01:52:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:52:07,343 INFO L225 Difference]: With dead ends: 19550 [2024-11-24 01:52:07,343 INFO L226 Difference]: Without dead ends: 12914 [2024-11-24 01:52:07,380 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 [2024-11-24 01:52:07,381 INFO L435 NwaCegarLoop]: 3832 mSDtfsCounter, 2045 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 5956 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:52:07,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2045 Valid, 5956 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-24 01:52:07,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12914 states. [2024-11-24 01:52:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12914 to 12872. [2024-11-24 01:52:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12872 states, 9005 states have (on average 1.2802887284841755) internal successors, (11529), 9263 states have internal predecessors, (11529), 3180 states have call successors, (3180), 757 states have call predecessors, (3180), 684 states have return successors, (3248), 2921 states have call predecessors, (3248), 3176 states have call successors, (3248) [2024-11-24 01:52:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12872 states to 12872 states and 17957 transitions. [2024-11-24 01:52:08,442 INFO L78 Accepts]: Start accepts. Automaton has 12872 states and 17957 transitions. Word has length 201 [2024-11-24 01:52:08,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:52:08,443 INFO L471 AbstractCegarLoop]: Abstraction has 12872 states and 17957 transitions. [2024-11-24 01:52:08,443 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-24 01:52:08,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12872 states and 17957 transitions. [2024-11-24 01:52:08,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-24 01:52:08,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:52:08,448 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:52:08,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:52:08,449 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:52:08,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:52:08,449 INFO L85 PathProgramCache]: Analyzing trace with hash -594308056, now seen corresponding path program 1 times [2024-11-24 01:52:08,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:52:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909749893] [2024-11-24 01:52:08,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:52:08,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:52:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:52:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2024-11-24 01:52:36,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:52:36,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909749893] [2024-11-24 01:52:36,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909749893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:52:36,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:52:36,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:52:36,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770187986] [2024-11-24 01:52:36,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:52:36,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:52:36,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:52:36,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:52:36,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:52:36,917 INFO L87 Difference]: Start difference. First operand 12872 states and 17957 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-24 01:52:41,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:52:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:52:42,691 INFO L93 Difference]: Finished difference Result 31798 states and 44419 transitions. [2024-11-24 01:52:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:52:42,692 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 201 [2024-11-24 01:52:42,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:52:42,815 INFO L225 Difference]: With dead ends: 31798 [2024-11-24 01:52:42,816 INFO L226 Difference]: Without dead ends: 19015 [2024-11-24 01:52:42,875 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 [2024-11-24 01:52:42,876 INFO L435 NwaCegarLoop]: 3290 mSDtfsCounter, 2018 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 5412 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:52:42,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 5412 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-11-24 01:52:42,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19015 states. [2024-11-24 01:52:44,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19015 to 19011. [2024-11-24 01:52:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19011 states, 13315 states have (on average 1.280886218550507) internal successors, (17055), 13687 states have internal predecessors, (17055), 4685 states have call successors, (4685), 1115 states have call predecessors, (4685), 1008 states have return successors, (4789), 4313 states have call predecessors, (4789), 4681 states have call successors, (4789) [2024-11-24 01:52:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19011 states to 19011 states and 26529 transitions. [2024-11-24 01:52:44,220 INFO L78 Accepts]: Start accepts. Automaton has 19011 states and 26529 transitions. Word has length 201 [2024-11-24 01:52:44,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:52:44,220 INFO L471 AbstractCegarLoop]: Abstraction has 19011 states and 26529 transitions. [2024-11-24 01:52:44,221 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-24 01:52:44,221 INFO L276 IsEmpty]: Start isEmpty. Operand 19011 states and 26529 transitions. [2024-11-24 01:52:44,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 01:52:44,226 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:52:44,226 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:52:44,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:52:44,227 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:52:44,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:52:44,227 INFO L85 PathProgramCache]: Analyzing trace with hash -222686635, now seen corresponding path program 1 times [2024-11-24 01:52:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:52:44,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94243701] [2024-11-24 01:52:44,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:52:44,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:53:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:53:12,967 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-24 01:53:12,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:53:12,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94243701] [2024-11-24 01:53:12,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94243701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:53:12,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:53:12,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:53:12,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979828100] [2024-11-24 01:53:12,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:53:12,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:53:12,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:53:12,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:53:12,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:53:12,969 INFO L87 Difference]: Start difference. First operand 19011 states and 26529 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:53:14,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:53:14,439 INFO L93 Difference]: Finished difference Result 19017 states and 26534 transitions. [2024-11-24 01:53:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:53:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 186 [2024-11-24 01:53:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:53:14,554 INFO L225 Difference]: With dead ends: 19017 [2024-11-24 01:53:14,554 INFO L226 Difference]: Without dead ends: 19015 [2024-11-24 01:53:14,567 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 [2024-11-24 01:53:14,567 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2094 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 6429 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:53:14,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:53:14,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19015 states. [2024-11-24 01:53:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19015 to 19015. [2024-11-24 01:53:15,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19015 states, 13318 states have (on average 1.2808229463883467) internal successors, (17058), 13690 states have internal predecessors, (17058), 4685 states have call successors, (4685), 1116 states have call predecessors, (4685), 1009 states have return successors, (4789), 4313 states have call predecessors, (4789), 4681 states have call successors, (4789) [2024-11-24 01:53:15,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19015 states to 19015 states and 26532 transitions. [2024-11-24 01:53:15,856 INFO L78 Accepts]: Start accepts. Automaton has 19015 states and 26532 transitions. Word has length 186 [2024-11-24 01:53:15,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:53:15,857 INFO L471 AbstractCegarLoop]: Abstraction has 19015 states and 26532 transitions. [2024-11-24 01:53:15,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 01:53:15,857 INFO L276 IsEmpty]: Start isEmpty. Operand 19015 states and 26532 transitions. [2024-11-24 01:53:15,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-24 01:53:15,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:53:15,863 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:53:15,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:53:15,864 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)] === [2024-11-24 01:53:15,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:53:15,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1391232709, now seen corresponding path program 1 times [2024-11-24 01:53:15,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:53:15,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038629204] [2024-11-24 01:53:15,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:53:15,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:53:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:53:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2024-11-24 01:53:47,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:53:47,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038629204] [2024-11-24 01:53:47,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038629204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:53:47,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:53:47,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:53:47,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218991489] [2024-11-24 01:53:47,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:53:47,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:53:47,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:53:47,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:53:47,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:53:47,149 INFO L87 Difference]: Start difference. First operand 19015 states and 26532 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-24 01:53:48,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:53:48,239 INFO L93 Difference]: Finished difference Result 19021 states and 26537 transitions. [2024-11-24 01:53:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:53:48,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 191 [2024-11-24 01:53:48,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:53:48,366 INFO L225 Difference]: With dead ends: 19021 [2024-11-24 01:53:48,366 INFO L226 Difference]: Without dead ends: 19019 [2024-11-24 01:53:48,384 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 [2024-11-24 01:53:48,384 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2093 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 6429 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 [2024-11-24 01:53:48,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:53:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19019 states. [2024-11-24 01:53:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19019 to 19019. [2024-11-24 01:53:49,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19019 states, 13321 states have (on average 1.2807597027250206) internal successors, (17061), 13693 states have internal predecessors, (17061), 4685 states have call successors, (4685), 1117 states have call predecessors, (4685), 1010 states have return successors, (4789), 4313 states have call predecessors, (4789), 4681 states have call successors, (4789) [2024-11-24 01:53:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19019 states to 19019 states and 26535 transitions. [2024-11-24 01:53:49,872 INFO L78 Accepts]: Start accepts. Automaton has 19019 states and 26535 transitions. Word has length 191 [2024-11-24 01:53:49,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:53:49,873 INFO L471 AbstractCegarLoop]: Abstraction has 19019 states and 26535 transitions. [2024-11-24 01:53:49,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-24 01:53:49,873 INFO L276 IsEmpty]: Start isEmpty. Operand 19019 states and 26535 transitions. [2024-11-24 01:53:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-24 01:53:49,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:53:49,879 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 8, 7, 7, 7, 7, 7, 7, 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] [2024-11-24 01:53:49,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:53:49,880 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:53:49,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:53:49,880 INFO L85 PathProgramCache]: Analyzing trace with hash 423725525, now seen corresponding path program 1 times [2024-11-24 01:53:49,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:53:49,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98986070] [2024-11-24 01:53:49,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:53:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2024-11-24 01:54:19,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:19,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98986070] [2024-11-24 01:54:19,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98986070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:19,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:19,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:54:19,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390018633] [2024-11-24 01:54:19,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:19,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:54:19,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:19,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:54:19,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:54:19,087 INFO L87 Difference]: Start difference. First operand 19019 states and 26535 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:54:20,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:20,215 INFO L93 Difference]: Finished difference Result 19025 states and 26540 transitions. [2024-11-24 01:54:20,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:54:20,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 196 [2024-11-24 01:54:20,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:20,335 INFO L225 Difference]: With dead ends: 19025 [2024-11-24 01:54:20,335 INFO L226 Difference]: Without dead ends: 19023 [2024-11-24 01:54:20,352 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 [2024-11-24 01:54:20,353 INFO L435 NwaCegarLoop]: 2149 mSDtfsCounter, 2092 mSDsluCounter, 4280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 6429 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 [2024-11-24 01:54:20,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 6429 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:54:20,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19023 states. [2024-11-24 01:54:21,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19023 to 19023. [2024-11-24 01:54:21,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19023 states, 13324 states have (on average 1.280696487541279) internal successors, (17064), 13696 states have internal predecessors, (17064), 4685 states have call successors, (4685), 1118 states have call predecessors, (4685), 1011 states have return successors, (4789), 4313 states have call predecessors, (4789), 4681 states have call successors, (4789) [2024-11-24 01:54:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19023 states to 19023 states and 26538 transitions. [2024-11-24 01:54:21,917 INFO L78 Accepts]: Start accepts. Automaton has 19023 states and 26538 transitions. Word has length 196 [2024-11-24 01:54:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:21,917 INFO L471 AbstractCegarLoop]: Abstraction has 19023 states and 26538 transitions. [2024-11-24 01:54:21,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-24 01:54:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 19023 states and 26538 transitions. [2024-11-24 01:54:21,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-24 01:54:21,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:21,922 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 9, 8, 8, 7, 7, 7, 7, 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] [2024-11-24 01:54:21,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:54:21,923 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:54:21,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1850007867, now seen corresponding path program 1 times [2024-11-24 01:54:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:21,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401296820] [2024-11-24 01:54:21,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:54:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:51,188 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-24 01:54:51,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:54:51,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401296820] [2024-11-24 01:54:51,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401296820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:51,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:51,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:54:51,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443164184] [2024-11-24 01:54:51,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:51,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:54:51,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:54:51,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:54:51,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:54:51,190 INFO L87 Difference]: Start difference. First operand 19023 states and 26538 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-24 01:54:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:53,161 INFO L93 Difference]: Finished difference Result 22339 states and 30727 transitions. [2024-11-24 01:54:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:54:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 201 [2024-11-24 01:54:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:53,275 INFO L225 Difference]: With dead ends: 22339 [2024-11-24 01:54:53,275 INFO L226 Difference]: Without dead ends: 22337 [2024-11-24 01:54:53,291 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 [2024-11-24 01:54:53,291 INFO L435 NwaCegarLoop]: 2348 mSDtfsCounter, 1354 mSDsluCounter, 5799 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 8147 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:53,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 8147 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:54:53,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22337 states. [2024-11-24 01:54:54,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22337 to 22312. [2024-11-24 01:54:54,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22312 states, 15352 states have (on average 1.2666753517457008) internal successors, (19446), 15775 states have internal predecessors, (19446), 5570 states have call successors, (5570), 1575 states have call predecessors, (5570), 1387 states have return successors, (5686), 5093 states have call predecessors, (5686), 5566 states have call successors, (5686) [2024-11-24 01:54:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22312 states to 22312 states and 30702 transitions. [2024-11-24 01:54:54,704 INFO L78 Accepts]: Start accepts. Automaton has 22312 states and 30702 transitions. Word has length 201 [2024-11-24 01:54:54,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:54,704 INFO L471 AbstractCegarLoop]: Abstraction has 22312 states and 30702 transitions. [2024-11-24 01:54:54,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-24 01:54:54,704 INFO L276 IsEmpty]: Start isEmpty. Operand 22312 states and 30702 transitions. [2024-11-24 01:54:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-24 01:54:54,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:54,709 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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] [2024-11-24 01:54:54,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:54:54,709 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:54:54,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:54,710 INFO L85 PathProgramCache]: Analyzing trace with hash -899991631, now seen corresponding path program 1 times [2024-11-24 01:54:54,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:54:54,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053302149] [2024-11-24 01:54:54,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:54,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:55:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:55:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-24 01:55:23,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:55:23,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053302149] [2024-11-24 01:55:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053302149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:55:23,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:55:23,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:55:23,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489537050] [2024-11-24 01:55:23,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:55:23,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:55:23,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:55:23,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:55:23,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:55:23,661 INFO L87 Difference]: Start difference. First operand 22312 states and 30702 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-24 01:55:27,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:55:30,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:55:30,356 INFO L93 Difference]: Finished difference Result 48450 states and 66610 transitions. [2024-11-24 01:55:30,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:55:30,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 207 [2024-11-24 01:55:30,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:55:30,484 INFO L225 Difference]: With dead ends: 48450 [2024-11-24 01:55:30,485 INFO L226 Difference]: Without dead ends: 26227 [2024-11-24 01:55:30,578 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 [2024-11-24 01:55:30,580 INFO L435 NwaCegarLoop]: 2768 mSDtfsCounter, 681 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:55:30,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 4882 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2024-11-24 01:55:30,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26227 states. [2024-11-24 01:55:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26227 to 26033. [2024-11-24 01:55:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26033 states, 18051 states have (on average 1.2630879175668939) internal successors, (22800), 18574 states have internal predecessors, (22800), 6337 states have call successors, (6337), 1944 states have call predecessors, (6337), 1642 states have return successors, (6495), 5646 states have call predecessors, (6495), 6333 states have call successors, (6495) [2024-11-24 01:55:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26033 states to 26033 states and 35632 transitions. [2024-11-24 01:55:32,608 INFO L78 Accepts]: Start accepts. Automaton has 26033 states and 35632 transitions. Word has length 207 [2024-11-24 01:55:32,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:55:32,609 INFO L471 AbstractCegarLoop]: Abstraction has 26033 states and 35632 transitions. [2024-11-24 01:55:32,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-24 01:55:32,609 INFO L276 IsEmpty]: Start isEmpty. Operand 26033 states and 35632 transitions. [2024-11-24 01:55:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-24 01:55:32,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:55:32,611 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 9, 7, 7, 7, 7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:55:32,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:55:32,612 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 01:55:32,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:55:32,612 INFO L85 PathProgramCache]: Analyzing trace with hash -420785835, now seen corresponding path program 1 times [2024-11-24 01:55:32,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:55:32,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383724820] [2024-11-24 01:55:32,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:55:32,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms