./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91 --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 f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:08:37,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:08:37,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:08:38,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:08:38,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:08:38,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:08:38,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:08:38,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:08:38,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:08:38,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:08:38,051 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:08:38,051 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:08:38,052 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:08:38,053 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:08:38,054 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:08:38,054 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:08:38,055 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:08:38,055 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:08:38,056 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:08:38,056 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:08:38,057 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:08:38,057 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:08:38,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:08:38,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:08:38,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:08:38,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:08:38,061 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:08:38,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:08:38,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:08:38,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:08:38,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:08:38,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:08:38,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:08:38,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:08:38,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:38,065 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:08:38,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:08:38,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:08:38,066 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:08:38,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:08:38,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:08:38,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:08:38,067 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:08:38,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:08:38,068 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6012e8ec841b08462bbd246c354a43139de7ccb42d1c6282a50e12dbc313f31 [2023-11-25 00:08:38,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:08:38,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:08:38,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:08:38,400 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:08:38,400 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:08:38,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2023-11-25 00:08:41,773 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:08:42,353 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:08:42,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2023-11-25 00:08:42,427 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/data/804158197/8610866c895e475da7e2e07ecaa658bd/FLAGa2a5afc65 [2023-11-25 00:08:42,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/data/804158197/8610866c895e475da7e2e07ecaa658bd [2023-11-25 00:08:42,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:08:42,454 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:08:42,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:42,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:08:42,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:08:42,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:42" (1/1) ... [2023-11-25 00:08:42,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce53766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:42, skipping insertion in model container [2023-11-25 00:08:42,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:42" (1/1) ... [2023-11-25 00:08:42,645 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:45,555 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2023-11-25 00:08:45,560 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2023-11-25 00:08:45,562 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2023-11-25 00:08:45,566 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2023-11-25 00:08:45,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:45,691 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:08:45,885 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"); [4795] [2023-11-25 00:08:45,887 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)); [4802] [2023-11-25 00:08:45,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [4809] [2023-11-25 00:08:45,890 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; decl %0": "+m" (v->counter)); [4847] [2023-11-25 00:08:46,226 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314540,314553] [2023-11-25 00:08:46,227 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314706,314719] [2023-11-25 00:08:46,227 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[314870,314883] [2023-11-25 00:08:46,228 WARN L240 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_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i[315035,315048] [2023-11-25 00:08:46,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:46,533 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:46,541 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:08:46,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46 WrapperNode [2023-11-25 00:08:46,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:46,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:46,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:08:46,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:08:46,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:46,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:46,928 INFO L138 Inliner]: procedures = 386, calls = 2592, calls flagged for inlining = 198, calls inlined = 148, statements flattened = 5292 [2023-11-25 00:08:46,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:46,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:08:46,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:08:46,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:08:46,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:46,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:46,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:46,995 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:47,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:47,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:47,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:47,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:47,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:08:47,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:08:47,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:08:47,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:08:47,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (1/1) ... [2023-11-25 00:08:47,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:47,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:47,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:08:47,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b296c4f-aa43-4ea0-9699-7d907e8dfd36/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:08:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-25 00:08:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-25 00:08:47,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:08:47,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:08:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-25 00:08:47,339 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-25 00:08:47,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:08:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:08:47,340 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-25 00:08:47,340 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-25 00:08:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_stereo_mono [2023-11-25 00:08:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_stereo_mono [2023-11-25 00:08:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-25 00:08:47,341 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-25 00:08:47,341 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_len [2023-11-25 00:08:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_len [2023-11-25 00:08:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-25 00:08:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-25 00:08:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-25 00:08:47,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:08:47,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:08:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-25 00:08:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-25 00:08:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2023-11-25 00:08:47,343 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2023-11-25 00:08:47,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:08:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:08:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-25 00:08:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-25 00:08:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-25 00:08:47,344 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-25 00:08:47,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:08:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-11-25 00:08:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-11-25 00:08:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure st_unregister [2023-11-25 00:08:47,345 INFO L138 BoogieDeclarations]: Found implementation of procedure st_unregister [2023-11-25 00:08:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:08:47,345 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-25 00:08:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-25 00:08:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-25 00:08:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-25 00:08:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:08:47,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:08:47,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:08:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:08:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_fmdev [2023-11-25 00:08:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_fmdev [2023-11-25 00:08:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_release [2023-11-25 00:08:47,347 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_release [2023-11-25 00:08:47,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:08:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:08:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_fmdev [2023-11-25 00:08:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_fmdev [2023-11-25 00:08:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:08:47,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:08:47,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-25 00:08:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-25 00:08:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_rds_mode [2023-11-25 00:08:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_rds_mode [2023-11-25 00:08:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-25 00:08:47,349 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-25 00:08:47,349 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2023-11-25 00:08:47,350 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2023-11-25 00:08:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_rds_mode [2023-11-25 00:08:47,350 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_rds_mode [2023-11-25 00:08:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:08:47,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:08:47,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:08:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:08:47,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:08:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-25 00:08:47,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-25 00:08:47,351 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-25 00:08:47,351 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-25 00:08:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:08:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:08:47,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:08:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:08:47,352 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-25 00:08:47,352 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-25 00:08:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-25 00:08:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-25 00:08:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_preemph_filter [2023-11-25 00:08:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_preemph_filter [2023-11-25 00:08:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-25 00:08:47,353 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-25 00:08:47,353 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-25 00:08:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-25 00:08:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-25 00:08:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-25 00:08:47,354 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-25 00:08:47,354 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-25 00:08:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure fm_g_volatile_ctrl [2023-11-25 00:08:47,355 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_g_volatile_ctrl [2023-11-25 00:08:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:08:47,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:08:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-25 00:08:47,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-25 00:08:47,355 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-25 00:08:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-25 00:08:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure fm_config_rx_mute_reg [2023-11-25 00:08:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_config_rx_mute_reg [2023-11-25 00:08:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-25 00:08:47,356 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-25 00:08:47,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:08:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:08:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_data_mode [2023-11-25 00:08:47,357 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_data_mode [2023-11-25 00:08:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:08:47,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:08:47,357 INFO L130 BoogieDeclarations]: Found specification of procedure fm_tx_set_pwr_lvl [2023-11-25 00:08:47,358 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_tx_set_pwr_lvl [2023-11-25 00:08:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-25 00:08:47,358 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-25 00:08:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_prepare [2023-11-25 00:08:47,358 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_prepare [2023-11-25 00:08:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_send_cmd [2023-11-25 00:08:47,358 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_send_cmd [2023-11-25 00:08:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2023-11-25 00:08:47,359 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2023-11-25 00:08:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure fm_send_cmd [2023-11-25 00:08:47,359 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_send_cmd [2023-11-25 00:08:47,359 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-25 00:08:47,359 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-25 00:08:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:08:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:08:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call_stage [2023-11-25 00:08:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call_stage [2023-11-25 00:08:47,360 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-11-25 00:08:47,360 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-11-25 00:08:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-25 00:08:47,361 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-25 00:08:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:08:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2023-11-25 00:08:47,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fm_drv_exit_6_2 [2023-11-25 00:08:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:08:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_rds_cache [2023-11-25 00:08:47,362 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_rds_cache [2023-11-25 00:08:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_reset_station_info [2023-11-25 00:08:47,362 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_reset_station_info [2023-11-25 00:08:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_s_ctrl [2023-11-25 00:08:47,362 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_s_ctrl [2023-11-25 00:08:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:08:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-25 00:08:47,363 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-25 00:08:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:08:47,363 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:08:47,363 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2023-11-25 00:08:47,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~int_handler_prototype~0 [2023-11-25 00:08:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure enable_xmit [2023-11-25 00:08:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_xmit [2023-11-25 00:08:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-25 00:08:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-25 00:08:47,364 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_volume [2023-11-25 00:08:47,364 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_volume [2023-11-25 00:08:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-25 00:08:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-25 00:08:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-25 00:08:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-25 00:08:47,365 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-25 00:08:47,365 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-25 00:08:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:08:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:08:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-25 00:08:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-25 00:08:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2023-11-25 00:08:47,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_mutex_of_fmdev [2023-11-25 00:08:47,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_rds_text [2023-11-25 00:08:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rds_text [2023-11-25 00:08:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-25 00:08:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-25 00:08:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_release [2023-11-25 00:08:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_release [2023-11-25 00:08:47,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:08:47,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:08:47,368 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-25 00:08:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-25 00:08:47,368 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:08:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:08:47,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:08:47,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:08:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-25 00:08:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-25 00:08:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:08:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-25 00:08:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-25 00:08:47,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:08:47,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:08:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_open [2023-11-25 00:08:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_open [2023-11-25 00:08:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-25 00:08:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-25 00:08:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure fm_rx_set_freq [2023-11-25 00:08:47,370 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_rx_set_freq [2023-11-25 00:08:47,370 INFO L130 BoogieDeclarations]: Found specification of procedure fmc_set_mode [2023-11-25 00:08:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure fmc_set_mode [2023-11-25 00:08:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure fm_v4l2_fops_write [2023-11-25 00:08:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_v4l2_fops_write [2023-11-25 00:08:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-25 00:08:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-25 00:08:47,371 INFO L130 BoogieDeclarations]: Found specification of procedure fm_irq_call [2023-11-25 00:08:47,371 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_irq_call [2023-11-25 00:08:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:08:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:08:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-25 00:08:47,372 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-25 00:08:47,372 INFO L130 BoogieDeclarations]: Found specification of procedure fm_power_down [2023-11-25 00:08:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_power_down [2023-11-25 00:08:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure fm_download_firmware [2023-11-25 00:08:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure fm_download_firmware [2023-11-25 00:08:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:08:47,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:08:47,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:08:48,331 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:08:48,336 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:08:48,594 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:08:55,231 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:08:55,446 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:08:57,241 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:08:57,241 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:08:57,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:57 BoogieIcfgContainer [2023-11-25 00:08:57,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:08:57,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:08:57,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:08:57,253 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:08:57,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:08:42" (1/3) ... [2023-11-25 00:08:57,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe670e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:57, skipping insertion in model container [2023-11-25 00:08:57,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:46" (2/3) ... [2023-11-25 00:08:57,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe670e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:57, skipping insertion in model container [2023-11-25 00:08:57,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:57" (3/3) ... [2023-11-25 00:08:57,258 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-wl128x-fm_drv.cil.i [2023-11-25 00:08:57,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:08:57,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:08:57,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:08:57,434 INFO L357 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, mHoare=true, 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;@4b94a005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:08:57,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:08:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 1527 states, 935 states have (on average 1.3251336898395722) internal successors, (1239), 951 states have internal predecessors, (1239), 492 states have call successors, (492), 98 states have call predecessors, (492), 97 states have return successors, (485), 482 states have call predecessors, (485), 485 states have call successors, (485) [2023-11-25 00:08:57,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-25 00:08:57,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:57,514 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:08:57,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:08:57,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:57,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1067599451, now seen corresponding path program 1 times [2023-11-25 00:08:57,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:08:57,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500679849] [2023-11-25 00:08:57,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:57,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:08:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:58,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-11-25 00:08:58,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:08:58,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500679849] [2023-11-25 00:08:58,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500679849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:59,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:59,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:08:59,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870474651] [2023-11-25 00:08:59,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:59,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:08:59,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:08:59,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:08:59,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:08:59,074 INFO L87 Difference]: Start difference. First operand has 1527 states, 935 states have (on average 1.3251336898395722) internal successors, (1239), 951 states have internal predecessors, (1239), 492 states have call successors, (492), 98 states have call predecessors, (492), 97 states have return successors, (485), 482 states have call predecessors, (485), 485 states have call successors, (485) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-25 00:09:02,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:04,858 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 [] [2023-11-25 00:09:04,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:04,996 INFO L93 Difference]: Finished difference Result 4350 states and 6371 transitions. [2023-11-25 00:09:04,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:04,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 215 [2023-11-25 00:09:05,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:05,063 INFO L225 Difference]: With dead ends: 4350 [2023-11-25 00:09:05,063 INFO L226 Difference]: Without dead ends: 2851 [2023-11-25 00:09:05,087 INFO L412 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 [2023-11-25 00:09:05,090 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 2061 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:05,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 3793 Invalid, 530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2023-11-25 00:09:05,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-11-25 00:09:05,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2847. [2023-11-25 00:09:05,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 1765 states have (on average 1.3223796033994335) internal successors, (2334), 1795 states have internal predecessors, (2334), 894 states have call successors, (894), 186 states have call predecessors, (894), 185 states have return successors, (890), 884 states have call predecessors, (890), 890 states have call successors, (890) [2023-11-25 00:09:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 4118 transitions. [2023-11-25 00:09:05,399 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 4118 transitions. Word has length 215 [2023-11-25 00:09:05,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:05,401 INFO L495 AbstractCegarLoop]: Abstraction has 2847 states and 4118 transitions. [2023-11-25 00:09:05,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-25 00:09:05,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 4118 transitions. [2023-11-25 00:09:05,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-25 00:09:05,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:05,410 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:09:05,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:09:05,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash -719363168, now seen corresponding path program 1 times [2023-11-25 00:09:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:05,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027436603] [2023-11-25 00:09:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:05,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-11-25 00:09:05,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:05,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027436603] [2023-11-25 00:09:05,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027436603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:05,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:05,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:09:05,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455987225] [2023-11-25 00:09:05,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:05,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:05,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:05,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:05,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:05,874 INFO L87 Difference]: Start difference. First operand 2847 states and 4118 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-25 00:09:09,767 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 [] [2023-11-25 00:09:11,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:13,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:14,051 INFO L93 Difference]: Finished difference Result 6192 states and 8820 transitions. [2023-11-25 00:09:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:14,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 235 [2023-11-25 00:09:14,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:14,098 INFO L225 Difference]: With dead ends: 6192 [2023-11-25 00:09:14,098 INFO L226 Difference]: Without dead ends: 3384 [2023-11-25 00:09:14,124 INFO L412 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 [2023-11-25 00:09:14,126 INFO L413 NwaCegarLoop]: 1987 mSDtfsCounter, 1342 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:14,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 3882 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 560 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2023-11-25 00:09:14,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2023-11-25 00:09:14,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3363. [2023-11-25 00:09:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2053 states have (on average 1.294203604481247) internal successors, (2657), 2097 states have internal predecessors, (2657), 1032 states have call successors, (1032), 276 states have call predecessors, (1032), 275 states have return successors, (1028), 1014 states have call predecessors, (1028), 1028 states have call successors, (1028) [2023-11-25 00:09:14,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4717 transitions. [2023-11-25 00:09:14,400 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4717 transitions. Word has length 235 [2023-11-25 00:09:14,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:14,401 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4717 transitions. [2023-11-25 00:09:14,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-25 00:09:14,402 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4717 transitions. [2023-11-25 00:09:14,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-25 00:09:14,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:14,412 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:14,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:09:14,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:09:14,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:14,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2100896021, now seen corresponding path program 1 times [2023-11-25 00:09:14,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:14,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517169379] [2023-11-25 00:09:14,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:14,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:15,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2023-11-25 00:09:15,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:15,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517169379] [2023-11-25 00:09:15,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517169379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:15,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:15,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:09:15,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438747417] [2023-11-25 00:09:15,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:15,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:15,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:15,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:15,290 INFO L87 Difference]: Start difference. First operand 3363 states and 4717 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-25 00:09:18,598 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 [] [2023-11-25 00:09:18,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:18,714 INFO L93 Difference]: Finished difference Result 5803 states and 8095 transitions. [2023-11-25 00:09:18,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:18,716 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 256 [2023-11-25 00:09:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:18,738 INFO L225 Difference]: With dead ends: 5803 [2023-11-25 00:09:18,738 INFO L226 Difference]: Without dead ends: 2479 [2023-11-25 00:09:18,757 INFO L412 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 [2023-11-25 00:09:18,759 INFO L413 NwaCegarLoop]: 1794 mSDtfsCounter, 1950 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:18,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 1866 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2023-11-25 00:09:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2023-11-25 00:09:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2479. [2023-11-25 00:09:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2479 states, 1524 states have (on average 1.2880577427821522) internal successors, (1963), 1539 states have internal predecessors, (1963), 737 states have call successors, (737), 216 states have call predecessors, (737), 215 states have return successors, (733), 728 states have call predecessors, (733), 733 states have call successors, (733) [2023-11-25 00:09:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3433 transitions. [2023-11-25 00:09:19,035 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3433 transitions. Word has length 256 [2023-11-25 00:09:19,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:19,037 INFO L495 AbstractCegarLoop]: Abstraction has 2479 states and 3433 transitions. [2023-11-25 00:09:19,037 INFO L496 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, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-25 00:09:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3433 transitions. [2023-11-25 00:09:19,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-25 00:09:19,046 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:19,046 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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] [2023-11-25 00:09:19,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:09:19,047 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:09:19,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:19,048 INFO L85 PathProgramCache]: Analyzing trace with hash 514203423, now seen corresponding path program 1 times [2023-11-25 00:09:19,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:19,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465951439] [2023-11-25 00:09:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:19,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2023-11-25 00:09:20,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:20,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465951439] [2023-11-25 00:09:20,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465951439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:20,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:20,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:20,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855117497] [2023-11-25 00:09:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:20,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:20,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:20,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:20,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:20,690 INFO L87 Difference]: Start difference. First operand 2479 states and 3433 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-25 00:09:24,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:27,120 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 [] [2023-11-25 00:09:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:27,343 INFO L93 Difference]: Finished difference Result 2485 states and 3438 transitions. [2023-11-25 00:09:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:09:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 266 [2023-11-25 00:09:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:27,365 INFO L225 Difference]: With dead ends: 2485 [2023-11-25 00:09:27,365 INFO L226 Difference]: Without dead ends: 2483 [2023-11-25 00:09:27,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:09:27,368 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1951 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 5317 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:27,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 5317 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 721 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2023-11-25 00:09:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2023-11-25 00:09:27,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 2483. [2023-11-25 00:09:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 1527 states have (on average 1.2874918140144074) internal successors, (1966), 1542 states have internal predecessors, (1966), 737 states have call successors, (737), 217 states have call predecessors, (737), 216 states have return successors, (733), 728 states have call predecessors, (733), 733 states have call successors, (733) [2023-11-25 00:09:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3436 transitions. [2023-11-25 00:09:27,567 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3436 transitions. Word has length 266 [2023-11-25 00:09:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:27,571 INFO L495 AbstractCegarLoop]: Abstraction has 2483 states and 3436 transitions. [2023-11-25 00:09:27,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-25 00:09:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3436 transitions. [2023-11-25 00:09:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-25 00:09:27,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:27,579 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 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] [2023-11-25 00:09:27,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:09:27,580 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:09:27,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:27,580 INFO L85 PathProgramCache]: Analyzing trace with hash -46573368, now seen corresponding path program 1 times [2023-11-25 00:09:27,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:27,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628308958] [2023-11-25 00:09:27,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:27,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1537 trivial. 0 not checked. [2023-11-25 00:09:28,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:28,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628308958] [2023-11-25 00:09:28,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628308958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:28,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:28,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:28,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398574516] [2023-11-25 00:09:28,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:28,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:28,879 INFO L87 Difference]: Start difference. First operand 2483 states and 3436 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, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32)