./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aef880bb129309003d913c07d7dcd4d46f60d65dc8c36bf7553e29f6f0214fc8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:24:47,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:24:47,841 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:24:47,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:24:47,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:24:47,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:24:47,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:24:47,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:24:47,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:24:47,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:24:47,896 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:24:47,896 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:24:47,896 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:24:47,896 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:24:47,897 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:24:47,898 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:24:47,898 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:24:47,899 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:24:47,899 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:24:47,899 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:24:47,899 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:24:47,899 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:24:47,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:24:47,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:24:47,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:24:47,900 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:24:47,900 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:24:47,900 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:24:47,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:24:47,901 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:24:47,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:24:47,901 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:24:47,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:24:47,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:24:47,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:24:47,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:24:47,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:24:47,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:24:47,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:24:47,903 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:24:47,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:24:47,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:24:47,903 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:24:47,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:24:47,904 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aef880bb129309003d913c07d7dcd4d46f60d65dc8c36bf7553e29f6f0214fc8 [2024-11-14 04:24:48,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:24:48,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:24:48,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:24:48,244 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:24:48,244 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:24:48,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i Unable to find full path for "g++" [2024-11-14 04:24:50,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:24:51,182 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:24:51,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2024-11-14 04:24:51,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/data/e80177922/e6bfe665a9f6400e95a5e66ac83b578e/FLAG19233a2f3 [2024-11-14 04:24:51,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/data/e80177922/e6bfe665a9f6400e95a5e66ac83b578e [2024-11-14 04:24:51,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:24:51,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:24:51,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:24:51,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:24:51,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:24:51,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:24:51" (1/1) ... [2024-11-14 04:24:51,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6486a88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:51, skipping insertion in model container [2024-11-14 04:24:51,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:24:51" (1/1) ... [2024-11-14 04:24:51,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:24:54,760 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2024-11-14 04:24:54,764 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2024-11-14 04:24:54,765 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2024-11-14 04:24:54,769 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2024-11-14 04:24:54,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:24:54,849 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:24:55,017 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"); [5286] [2024-11-14 04:24:55,019 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)); [5293] [2024-11-14 04:24:55,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2024-11-14 04:24:55,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6043] [2024-11-14 04:24:55,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6491] [2024-11-14 04:24:55,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6514] [2024-11-14 04:24:55,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [11140-11141] [2024-11-14 04:24:55,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11172] [2024-11-14 04:24:55,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11175] [2024-11-14 04:24:55,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11178] [2024-11-14 04:24:55,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11181] [2024-11-14 04:24:55,322 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11260] [2024-11-14 04:24:55,323 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11268] [2024-11-14 04:24:55,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11323] [2024-11-14 04:24:55,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11330] [2024-11-14 04:24:55,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11494] [2024-11-14 04:24:55,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12171] [2024-11-14 04:24:55,492 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2024-11-14 04:24:55,492 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2024-11-14 04:24:55,493 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2024-11-14 04:24:55,493 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_4690df4d-496d-4f5b-8726-7e472116dd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2024-11-14 04:24:55,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:24:55,768 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:24:55,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55 WrapperNode [2024-11-14 04:24:55,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:24:55,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:24:55,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:24:55,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:24:55,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:55,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,142 INFO L138 Inliner]: procedures = 451, calls = 2330, calls flagged for inlining = 233, calls inlined = 220, statements flattened = 6942 [2024-11-14 04:24:56,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:24:56,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:24:56,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:24:56,146 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:24:56,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:24:56,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:24:56,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:24:56,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:24:56,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (1/1) ... [2024-11-14 04:24:56,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:24:56,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:24:56,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:24:56,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4690df4d-496d-4f5b-8726-7e472116dd9a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:24:56,708 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2024-11-14 04:24:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2024-11-14 04:24:56,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2024-11-14 04:24:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2024-11-14 04:24:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 04:24:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 04:24:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 04:24:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 04:24:56,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 04:24:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2024-11-14 04:24:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2024-11-14 04:24:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-14 04:24:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2024-11-14 04:24:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2024-11-14 04:24:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 04:24:56,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 04:24:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alert [2024-11-14 04:24:56,714 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alert [2024-11-14 04:24:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 04:24:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-14 04:24:56,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-14 04:24:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:24:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 04:24:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 04:24:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-14 04:24:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-14 04:24:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:24:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 04:24:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 04:24:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2024-11-14 04:24:56,720 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2024-11-14 04:24:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2024-11-14 04:24:56,721 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:24:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-14 04:24:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2024-11-14 04:24:56,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2024-11-14 04:24:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2024-11-14 04:24:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2024-11-14 04:24:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2024-11-14 04:24:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2024-11-14 04:24:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2024-11-14 04:24:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2024-11-14 04:24:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2024-11-14 04:24:56,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2024-11-14 04:24:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-14 04:24:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-14 04:24:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2024-11-14 04:24:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2024-11-14 04:24:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-14 04:24:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-14 04:24:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:24:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:24:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2024-11-14 04:24:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2024-11-14 04:24:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 04:24:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2024-11-14 04:24:56,728 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2024-11-14 04:24:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 04:24:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 04:24:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 04:24:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2024-11-14 04:24:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2024-11-14 04:24:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2024-11-14 04:24:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2024-11-14 04:24:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 04:24:56,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-14 04:24:56,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:24:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-14 04:24:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-14 04:24:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:24:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-14 04:24:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-14 04:24:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 04:24:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 04:24:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 04:24:56,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 04:24:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-14 04:24:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-14 04:24:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 04:24:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2024-11-14 04:24:56,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2024-11-14 04:24:56,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 04:24:56,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 04:24:57,944 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:24:57,948 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:25:00,124 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 04:25:13,382 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 04:25:14,562 INFO L? ?]: Removed 2490 outVars from TransFormulas that were not future-live. [2024-11-14 04:25:14,563 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:25:17,217 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:25:17,218 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-14 04:25:17,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:25:17 BoogieIcfgContainer [2024-11-14 04:25:17,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:25:17,221 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:25:17,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:25:17,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:25:17,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:24:51" (1/3) ... [2024-11-14 04:25:17,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74263dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:25:17, skipping insertion in model container [2024-11-14 04:25:17,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:24:55" (2/3) ... [2024-11-14 04:25:17,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74263dd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:25:17, skipping insertion in model container [2024-11-14 04:25:17,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:25:17" (3/3) ... [2024-11-14 04:25:17,236 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2024-11-14 04:25:17,262 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:25:17,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i that has 88 procedures, 1782 locations, 1 initial locations, 14 loop locations, and 3 error locations. [2024-11-14 04:25:17,396 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:25:17,414 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2952bb34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:25:17,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 04:25:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1110 states have (on average 1.3441441441441442) internal successors, (1492), 1124 states have internal predecessors, (1492), 581 states have call successors, (581), 87 states have call predecessors, (581), 86 states have return successors, (573), 573 states have call predecessors, (573), 573 states have call successors, (573) [2024-11-14 04:25:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-14 04:25:17,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:17,472 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:17,473 INFO L396 AbstractCegarLoop]: === Iteration 1 === 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)] === [2024-11-14 04:25:17,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:17,478 INFO L85 PathProgramCache]: Analyzing trace with hash 849989496, now seen corresponding path program 1 times [2024-11-14 04:25:17,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:17,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828847423] [2024-11-14 04:25:17,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:17,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:25:27,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:27,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828847423] [2024-11-14 04:25:27,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828847423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:27,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:27,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:27,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12725399] [2024-11-14 04:25:27,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:27,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:27,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:27,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:27,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:27,158 INFO L87 Difference]: Start difference. First operand has 1780 states, 1110 states have (on average 1.3441441441441442) internal successors, (1492), 1124 states have internal predecessors, (1492), 581 states have call successors, (581), 87 states have call predecessors, (581), 86 states have return successors, (573), 573 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-14 04:25:29,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:25:31,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:25:36,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:25:40,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:25:42,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:42,013 INFO L93 Difference]: Finished difference Result 5056 states and 7680 transitions. [2024-11-14 04:25:42,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:25:42,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2024-11-14 04:25:42,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:42,066 INFO L225 Difference]: With dead ends: 5056 [2024-11-14 04:25:42,067 INFO L226 Difference]: Without dead ends: 3338 [2024-11-14 04:25:42,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:42,086 INFO L432 NwaCegarLoop]: 2357 mSDtfsCounter, 2349 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2349 SdHoareTripleChecker+Valid, 4671 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:42,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2349 Valid, 4671 Invalid, 659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 652 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2024-11-14 04:25:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3338 states. [2024-11-14 04:25:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3338 to 3312. [2024-11-14 04:25:42,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2087 states have (on average 1.345951126018208) internal successors, (2809), 2115 states have internal predecessors, (2809), 1055 states have call successors, (1055), 168 states have call predecessors, (1055), 167 states have return successors, (1096), 1047 states have call predecessors, (1096), 1051 states have call successors, (1096) [2024-11-14 04:25:42,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 4960 transitions. [2024-11-14 04:25:42,581 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 4960 transitions. Word has length 411 [2024-11-14 04:25:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:42,583 INFO L471 AbstractCegarLoop]: Abstraction has 3312 states and 4960 transitions. [2024-11-14 04:25:42,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-14 04:25:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 4960 transitions. [2024-11-14 04:25:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-14 04:25:42,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:42,606 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:25:42,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:25:42,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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)] === [2024-11-14 04:25:42,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:42,608 INFO L85 PathProgramCache]: Analyzing trace with hash 199734794, now seen corresponding path program 1 times [2024-11-14 04:25:42,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:25:42,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159783221] [2024-11-14 04:25:42,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:25:42,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:25:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:25:50,065 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:25:50,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:25:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159783221] [2024-11-14 04:25:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159783221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:25:50,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:25:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:25:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490292198] [2024-11-14 04:25:50,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:25:50,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:25:50,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:25:50,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:25:50,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:25:50,073 INFO L87 Difference]: Start difference. First operand 3312 states and 4960 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-14 04:25:52,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:25:54,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:25:57,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:02,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:05,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:05,640 INFO L93 Difference]: Finished difference Result 9691 states and 14513 transitions. [2024-11-14 04:26:05,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:26:05,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2024-11-14 04:26:05,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:05,701 INFO L225 Difference]: With dead ends: 9691 [2024-11-14 04:26:05,702 INFO L226 Difference]: Without dead ends: 6458 [2024-11-14 04:26:05,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:26:05,727 INFO L432 NwaCegarLoop]: 2308 mSDtfsCounter, 2424 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2424 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:05,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2424 Valid, 4574 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 648 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2024-11-14 04:26:05,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6458 states. [2024-11-14 04:26:06,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6458 to 6454. [2024-11-14 04:26:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6454 states, 4098 states have (on average 1.3482186432406051) internal successors, (5525), 4146 states have internal predecessors, (5525), 2022 states have call successors, (2022), 332 states have call predecessors, (2022), 331 states have return successors, (2108), 2013 states have call predecessors, (2108), 2018 states have call successors, (2108) [2024-11-14 04:26:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6454 states to 6454 states and 9655 transitions. [2024-11-14 04:26:06,208 INFO L78 Accepts]: Start accepts. Automaton has 6454 states and 9655 transitions. Word has length 411 [2024-11-14 04:26:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:06,212 INFO L471 AbstractCegarLoop]: Abstraction has 6454 states and 9655 transitions. [2024-11-14 04:26:06,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-14 04:26:06,212 INFO L276 IsEmpty]: Start isEmpty. Operand 6454 states and 9655 transitions. [2024-11-14 04:26:06,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-14 04:26:06,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:06,230 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:06,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:26:06,230 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)] === [2024-11-14 04:26:06,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:06,231 INFO L85 PathProgramCache]: Analyzing trace with hash -852344079, now seen corresponding path program 1 times [2024-11-14 04:26:06,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:06,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327761635] [2024-11-14 04:26:06,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:06,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:26:13,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:13,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327761635] [2024-11-14 04:26:13,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327761635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:13,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:26:13,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:26:13,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094544272] [2024-11-14 04:26:13,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:13,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:26:13,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:13,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:26:13,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:26:13,553 INFO L87 Difference]: Start difference. First operand 6454 states and 9655 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-14 04:26:15,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:17,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:21,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:28,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:28,638 INFO L93 Difference]: Finished difference Result 18888 states and 28549 transitions. [2024-11-14 04:26:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:26:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 418 [2024-11-14 04:26:28,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:28,771 INFO L225 Difference]: With dead ends: 18888 [2024-11-14 04:26:28,771 INFO L226 Difference]: Without dead ends: 12513 [2024-11-14 04:26:28,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:26:28,823 INFO L432 NwaCegarLoop]: 2306 mSDtfsCounter, 2395 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 4579 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:28,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 4579 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 658 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2024-11-14 04:26:28,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12513 states. [2024-11-14 04:26:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12513 to 12480. [2024-11-14 04:26:29,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12480 states, 7926 states have (on average 1.3478425435276307) internal successors, (10683), 8028 states have internal predecessors, (10683), 3898 states have call successors, (3898), 658 states have call predecessors, (3898), 653 states have return successors, (4370), 3865 states have call predecessors, (4370), 3894 states have call successors, (4370) [2024-11-14 04:26:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12480 states to 12480 states and 18951 transitions. [2024-11-14 04:26:29,781 INFO L78 Accepts]: Start accepts. Automaton has 12480 states and 18951 transitions. Word has length 418 [2024-11-14 04:26:29,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:29,782 INFO L471 AbstractCegarLoop]: Abstraction has 12480 states and 18951 transitions. [2024-11-14 04:26:29,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-14 04:26:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 12480 states and 18951 transitions. [2024-11-14 04:26:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-14 04:26:29,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:29,802 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:29,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:26:29,802 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)] === [2024-11-14 04:26:29,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:29,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1337206892, now seen corresponding path program 1 times [2024-11-14 04:26:29,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:29,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356553392] [2024-11-14 04:26:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:29,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:26:37,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:37,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356553392] [2024-11-14 04:26:37,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356553392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:37,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:26:37,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:26:37,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701724459] [2024-11-14 04:26:37,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:37,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:26:37,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:37,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:26:37,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:26:37,300 INFO L87 Difference]: Start difference. First operand 12480 states and 18951 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 04:26:39,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:41,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:48,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:50,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:53,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:26:53,666 INFO L93 Difference]: Finished difference Result 30854 states and 46843 transitions. [2024-11-14 04:26:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:26:53,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 431 [2024-11-14 04:26:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:26:53,833 INFO L225 Difference]: With dead ends: 30854 [2024-11-14 04:26:53,833 INFO L226 Difference]: Without dead ends: 18453 [2024-11-14 04:26:53,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:26:53,912 INFO L432 NwaCegarLoop]: 2357 mSDtfsCounter, 2419 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 4624 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:26:53,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 4624 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 678 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2024-11-14 04:26:53,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18453 states. [2024-11-14 04:26:55,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18453 to 18422. [2024-11-14 04:26:55,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18422 states, 11732 states have (on average 1.3449539720422776) internal successors, (15779), 11894 states have internal predecessors, (15779), 5710 states have call successors, (5710), 988 states have call predecessors, (5710), 977 states have return successors, (6394), 5647 states have call predecessors, (6394), 5706 states have call successors, (6394) [2024-11-14 04:26:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18422 states to 18422 states and 27883 transitions. [2024-11-14 04:26:55,214 INFO L78 Accepts]: Start accepts. Automaton has 18422 states and 27883 transitions. Word has length 431 [2024-11-14 04:26:55,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:26:55,216 INFO L471 AbstractCegarLoop]: Abstraction has 18422 states and 27883 transitions. [2024-11-14 04:26:55,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 04:26:55,218 INFO L276 IsEmpty]: Start isEmpty. Operand 18422 states and 27883 transitions. [2024-11-14 04:26:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-14 04:26:55,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:55,233 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:26:55,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:26:55,233 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 04:26:55,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1537595002, now seen corresponding path program 1 times [2024-11-14 04:26:55,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:55,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763496699] [2024-11-14 04:26:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:55,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:27:02,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:02,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763496699] [2024-11-14 04:27:02,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763496699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:02,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:02,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:27:02,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765562209] [2024-11-14 04:27:02,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:02,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:27:02,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:02,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:27:02,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:02,283 INFO L87 Difference]: Start difference. First operand 18422 states and 27883 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-14 04:27:04,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:06,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:13,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:15,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:17,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:22,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:22,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:22,561 INFO L93 Difference]: Finished difference Result 40175 states and 60677 transitions. [2024-11-14 04:27:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:22,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 433 [2024-11-14 04:27:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:22,915 INFO L225 Difference]: With dead ends: 40175 [2024-11-14 04:27:22,916 INFO L226 Difference]: Without dead ends: 21832 [2024-11-14 04:27:22,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:27:22,988 INFO L432 NwaCegarLoop]: 2949 mSDtfsCounter, 2259 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 29 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:22,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 5190 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 788 Invalid, 4 Unknown, 0 Unchecked, 19.6s Time] [2024-11-14 04:27:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21832 states. [2024-11-14 04:27:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21832 to 21799. [2024-11-14 04:27:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21799 states, 13854 states have (on average 1.339540926808142) internal successors, (18558), 14067 states have internal predecessors, (18558), 6776 states have call successors, (6776), 1181 states have call predecessors, (6776), 1166 states have return successors, (7285), 6672 states have call predecessors, (7285), 6772 states have call successors, (7285) [2024-11-14 04:27:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21799 states to 21799 states and 32619 transitions. [2024-11-14 04:27:24,327 INFO L78 Accepts]: Start accepts. Automaton has 21799 states and 32619 transitions. Word has length 433 [2024-11-14 04:27:24,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:24,330 INFO L471 AbstractCegarLoop]: Abstraction has 21799 states and 32619 transitions. [2024-11-14 04:27:24,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-14 04:27:24,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21799 states and 32619 transitions. [2024-11-14 04:27:24,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-14 04:27:24,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:24,347 INFO L215 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:24,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:27:24,348 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)] === [2024-11-14 04:27:24,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:24,348 INFO L85 PathProgramCache]: Analyzing trace with hash -857083313, now seen corresponding path program 1 times [2024-11-14 04:27:24,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:24,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690703672] [2024-11-14 04:27:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:24,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6279 trivial. 0 not checked. [2024-11-14 04:27:33,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:33,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690703672] [2024-11-14 04:27:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690703672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:33,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:33,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:27:33,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572654935] [2024-11-14 04:27:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:33,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:27:33,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:33,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:27:33,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:27:33,651 INFO L87 Difference]: Start difference. First operand 21799 states and 32619 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-14 04:27:35,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:37,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:40,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:48,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:50,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:56,029 INFO L93 Difference]: Finished difference Result 21805 states and 32624 transitions. [2024-11-14 04:27:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:27:56,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 453 [2024-11-14 04:27:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:56,194 INFO L225 Difference]: With dead ends: 21805 [2024-11-14 04:27:56,194 INFO L226 Difference]: Without dead ends: 21803 [2024-11-14 04:27:56,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:27:56,216 INFO L432 NwaCegarLoop]: 2296 mSDtfsCounter, 2515 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2516 SdHoareTripleChecker+Valid, 6875 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:56,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2516 Valid, 6875 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 965 Invalid, 4 Unknown, 0 Unchecked, 21.7s Time] [2024-11-14 04:27:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21803 states. [2024-11-14 04:27:57,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21803 to 21803. [2024-11-14 04:27:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21803 states, 13857 states have (on average 1.339467417189868) internal successors, (18561), 14070 states have internal predecessors, (18561), 6776 states have call successors, (6776), 1182 states have call predecessors, (6776), 1167 states have return successors, (7285), 6672 states have call predecessors, (7285), 6772 states have call successors, (7285) [2024-11-14 04:27:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21803 states to 21803 states and 32622 transitions. [2024-11-14 04:27:57,811 INFO L78 Accepts]: Start accepts. Automaton has 21803 states and 32622 transitions. Word has length 453 [2024-11-14 04:27:57,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:57,812 INFO L471 AbstractCegarLoop]: Abstraction has 21803 states and 32622 transitions. [2024-11-14 04:27:57,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-14 04:27:57,813 INFO L276 IsEmpty]: Start isEmpty. Operand 21803 states and 32622 transitions. [2024-11-14 04:27:57,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-14 04:27:57,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:57,822 INFO L215 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:27:57,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:27:57,822 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)] === [2024-11-14 04:27:57,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:57,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1967313353, now seen corresponding path program 1 times [2024-11-14 04:27:57,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:57,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069154774] [2024-11-14 04:27:57,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:57,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 6289 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6287 trivial. 0 not checked. [2024-11-14 04:28:06,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:06,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069154774] [2024-11-14 04:28:06,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069154774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:06,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:06,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:28:06,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241625107] [2024-11-14 04:28:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:06,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:28:06,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:06,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:28:06,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:28:06,815 INFO L87 Difference]: Start difference. First operand 21803 states and 32622 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-14 04:28:08,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:11,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:13,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:21,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:23,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:24,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:30,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:30,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:30,786 INFO L93 Difference]: Finished difference Result 21809 states and 32627 transitions. [2024-11-14 04:28:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:28:30,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 462 [2024-11-14 04:28:30,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:30,945 INFO L225 Difference]: With dead ends: 21809 [2024-11-14 04:28:30,945 INFO L226 Difference]: Without dead ends: 21807 [2024-11-14 04:28:30,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:28:30,966 INFO L432 NwaCegarLoop]: 2299 mSDtfsCounter, 2510 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 6879 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:30,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 6879 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 966 Invalid, 4 Unknown, 0 Unchecked, 23.2s Time] [2024-11-14 04:28:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21807 states. [2024-11-14 04:28:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21807 to 21807. [2024-11-14 04:28:32,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21807 states, 13860 states have (on average 1.3393939393939394) internal successors, (18564), 14073 states have internal predecessors, (18564), 6776 states have call successors, (6776), 1183 states have call predecessors, (6776), 1168 states have return successors, (7285), 6672 states have call predecessors, (7285), 6772 states have call successors, (7285) [2024-11-14 04:28:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21807 states to 21807 states and 32625 transitions. [2024-11-14 04:28:32,465 INFO L78 Accepts]: Start accepts. Automaton has 21807 states and 32625 transitions. Word has length 462 [2024-11-14 04:28:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:32,467 INFO L471 AbstractCegarLoop]: Abstraction has 21807 states and 32625 transitions. [2024-11-14 04:28:32,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-14 04:28:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 21807 states and 32625 transitions. [2024-11-14 04:28:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-11-14 04:28:32,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:32,476 INFO L215 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:28:32,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:28:32,477 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)] === [2024-11-14 04:28:32,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:32,477 INFO L85 PathProgramCache]: Analyzing trace with hash 985752847, now seen corresponding path program 1 times [2024-11-14 04:28:32,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:32,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574297124] [2024-11-14 04:28:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6287 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6283 trivial. 0 not checked. [2024-11-14 04:28:42,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:42,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574297124] [2024-11-14 04:28:42,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574297124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:42,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:42,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:28:42,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292270858] [2024-11-14 04:28:42,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:42,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:28:42,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:42,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:28:42,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:28:42,285 INFO L87 Difference]: Start difference. First operand 21807 states and 32625 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-14 04:28:44,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:46,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:48,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:57,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:59,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:04,587 INFO L93 Difference]: Finished difference Result 21813 states and 32630 transitions. [2024-11-14 04:29:04,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:29:04,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 463 [2024-11-14 04:29:04,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:04,755 INFO L225 Difference]: With dead ends: 21813 [2024-11-14 04:29:04,755 INFO L226 Difference]: Without dead ends: 21811 [2024-11-14 04:29:04,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:29:04,776 INFO L432 NwaCegarLoop]: 2299 mSDtfsCounter, 2510 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 6879 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:04,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 6879 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 966 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time] [2024-11-14 04:29:04,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21811 states. [2024-11-14 04:29:06,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21811 to 21811. [2024-11-14 04:29:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21811 states, 13863 states have (on average 1.339320493399697) internal successors, (18567), 14076 states have internal predecessors, (18567), 6776 states have call successors, (6776), 1184 states have call predecessors, (6776), 1169 states have return successors, (7285), 6672 states have call predecessors, (7285), 6772 states have call successors, (7285) [2024-11-14 04:29:06,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21811 states to 21811 states and 32628 transitions. [2024-11-14 04:29:06,996 INFO L78 Accepts]: Start accepts. Automaton has 21811 states and 32628 transitions. Word has length 463 [2024-11-14 04:29:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:06,997 INFO L471 AbstractCegarLoop]: Abstraction has 21811 states and 32628 transitions. [2024-11-14 04:29:06,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-14 04:29:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 21811 states and 32628 transitions. [2024-11-14 04:29:07,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-14 04:29:07,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:07,007 INFO L215 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:07,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:29:07,007 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)] === [2024-11-14 04:29:07,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:07,008 INFO L85 PathProgramCache]: Analyzing trace with hash -468853753, now seen corresponding path program 1 times [2024-11-14 04:29:07,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:07,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015181782] [2024-11-14 04:29:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:14,844 INFO L134 CoverageAnalysis]: Checked inductivity of 6297 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6291 trivial. 0 not checked. [2024-11-14 04:29:14,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:14,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015181782] [2024-11-14 04:29:14,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015181782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:14,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:14,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:29:14,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827413026] [2024-11-14 04:29:14,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:14,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:29:14,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:14,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:29:14,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:29:14,850 INFO L87 Difference]: Start difference. First operand 21811 states and 32628 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-14 04:29:16,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:19,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:21,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:29,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:32,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:36,835 INFO L93 Difference]: Finished difference Result 21817 states and 32633 transitions. [2024-11-14 04:29:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:29:36,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 468 [2024-11-14 04:29:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:36,994 INFO L225 Difference]: With dead ends: 21817 [2024-11-14 04:29:36,994 INFO L226 Difference]: Without dead ends: 21815 [2024-11-14 04:29:37,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:29:37,015 INFO L432 NwaCegarLoop]: 2299 mSDtfsCounter, 2509 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 6879 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:37,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 6879 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 966 Invalid, 4 Unknown, 0 Unchecked, 21.0s Time] [2024-11-14 04:29:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21815 states. [2024-11-14 04:29:38,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21815 to 21815. [2024-11-14 04:29:38,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21815 states, 13866 states have (on average 1.3392470791864994) internal successors, (18570), 14079 states have internal predecessors, (18570), 6776 states have call successors, (6776), 1185 states have call predecessors, (6776), 1170 states have return successors, (7285), 6672 states have call predecessors, (7285), 6772 states have call successors, (7285) [2024-11-14 04:29:38,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21815 states to 21815 states and 32631 transitions. [2024-11-14 04:29:38,916 INFO L78 Accepts]: Start accepts. Automaton has 21815 states and 32631 transitions. Word has length 468 [2024-11-14 04:29:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:38,917 INFO L471 AbstractCegarLoop]: Abstraction has 21815 states and 32631 transitions. [2024-11-14 04:29:38,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-14 04:29:38,918 INFO L276 IsEmpty]: Start isEmpty. Operand 21815 states and 32631 transitions. [2024-11-14 04:29:38,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-14 04:29:38,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:38,929 INFO L215 NwaCegarLoop]: trace histogram [43, 39, 39, 39, 39, 39, 39, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:29:38,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:29:38,930 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)] === [2024-11-14 04:29:38,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash 761927631, now seen corresponding path program 1 times [2024-11-14 04:29:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:38,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929240871] [2024-11-14 04:29:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms