./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-net-netconsole.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5 --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 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:02:31,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:02:31,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:02:31,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:02:31,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:02:31,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:02:31,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:02:31,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:02:31,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:02:31,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:02:31,922 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:02:31,923 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:02:31,923 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:02:31,926 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:02:31,926 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:02:31,927 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:02:31,927 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:02:31,927 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:02:31,928 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:02:31,929 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:02:31,929 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:02:31,930 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:02:31,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:02:31,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:02:31,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:02:31,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:02:31,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:02:31,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:02:31,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:02:31,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:02:31,935 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:02:31,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:02:31,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:02:31,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:02:31,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:02:31,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:02:31,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:02:31,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:02:31,937 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:02:31,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:02:31,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:02:31,937 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:02:31,938 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:02:31,938 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:02:31,938 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_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2023-11-21 19:02:32,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:02:32,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:02:32,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:02:32,297 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:02:32,297 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:02:32,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2023-11-21 19:02:35,454 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:02:36,134 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:02:36,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2023-11-21 19:02:36,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/data/5d3b89788/2f6d1b9d98434e7fa74edf2776c7e786/FLAGb0ca46ae1 [2023-11-21 19:02:36,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/data/5d3b89788/2f6d1b9d98434e7fa74edf2776c7e786 [2023-11-21 19:02:36,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:02:36,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:02:36,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:36,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:02:36,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:02:36,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:36" (1/1) ... [2023-11-21 19:02:36,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c712c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:36, skipping insertion in model container [2023-11-21 19:02:36,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:36" (1/1) ... [2023-11-21 19:02:36,375 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:02:38,534 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2023-11-21 19:02:38,538 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2023-11-21 19:02:38,540 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2023-11-21 19:02:38,542 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2023-11-21 19:02:38,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:02:38,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:02:38,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5224] [2023-11-21 19:02:38,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5227] [2023-11-21 19:02:38,805 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5230] [2023-11-21 19:02:38,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5233] [2023-11-21 19:02:38,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5264] [2023-11-21 19:02:38,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5267] [2023-11-21 19:02:38,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5270] [2023-11-21 19:02:38,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5273] [2023-11-21 19:02:38,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5304] [2023-11-21 19:02:38,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5307] [2023-11-21 19:02:38,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5310] [2023-11-21 19:02:38,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5313] [2023-11-21 19:02:38,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5344] [2023-11-21 19:02:38,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5347] [2023-11-21 19:02:38,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5350] [2023-11-21 19:02:38,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (*(dev->pcpu_refcnt))); [5353] [2023-11-21 19:02:38,915 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311030,311043] [2023-11-21 19:02:38,916 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311196,311209] [2023-11-21 19:02:38,916 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311360,311373] [2023-11-21 19:02:38,916 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_ffcf5020-2035-455a-8f9f-602a29453d8f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i[311525,311538] [2023-11-21 19:02:38,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:02:39,008 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:02:39,008 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:02:39,016 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:02:39,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39 WrapperNode [2023-11-21 19:02:39,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:39,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:02:39,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:02:39,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:02:39,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,216 INFO L138 Inliner]: procedures = 289, calls = 1055, calls flagged for inlining = 163, calls inlined = 153, statements flattened = 3421 [2023-11-21 19:02:39,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:02:39,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:02:39,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:02:39,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:02:39,227 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:02:39,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:02:39,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:02:39,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:02:39,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (1/1) ... [2023-11-21 19:02:39,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:02:39,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:02:39,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:02:39,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcf5020-2035-455a-8f9f-602a29453d8f/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:02:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure show_enabled [2023-11-21 19:02:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure show_enabled [2023-11-21 19:02:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdevice_notifier [2023-11-21 19:02:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdevice_notifier [2023-11-21 19:02:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:02:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:02:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:02:39,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:02:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 19:02:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 19:02:39,633 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_mac [2023-11-21 19:02:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_mac [2023-11-21 19:02:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_put [2023-11-21 19:02:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_put [2023-11-21 19:02:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_ip [2023-11-21 19:02:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_ip [2023-11-21 19:02:39,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:02:39,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:02:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-21 19:02:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure show_dev_name [2023-11-21 19:02:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure show_dev_name [2023-11-21 19:02:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_notifier [2023-11-21 19:02:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_notifier [2023-11-21 19:02:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure drop_netconsole_target [2023-11-21 19:02:39,635 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_netconsole_target [2023-11-21 19:02:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure free_param_target [2023-11-21 19:02:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure free_param_target [2023-11-21 19:02:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:02:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:02:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_get [2023-11-21 19:02:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_get [2023-11-21 19:02:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_mac [2023-11-21 19:02:39,637 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_mac [2023-11-21 19:02:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_ip [2023-11-21 19:02:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_ip [2023-11-21 19:02:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 19:02:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 19:02:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-21 19:02:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-21 19:02:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_netconsole_target [2023-11-21 19:02:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_netconsole_target [2023-11-21 19:02:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:02:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:02:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 19:02:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 19:02:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 19:02:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 19:02:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 19:02:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 19:02:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-21 19:02:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-21 19:02:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:02:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:02:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_release [2023-11-21 19:02:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_release [2023-11-21 19:02:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_attr_show [2023-11-21 19:02:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_attr_show [2023-11-21 19:02:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure make_netconsole_target [2023-11-21 19:02:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure make_netconsole_target [2023-11-21 19:02:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:02:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:02:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_cleanup [2023-11-21 19:02:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_cleanup [2023-11-21 19:02:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:02:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:02:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_setup [2023-11-21 19:02:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_setup [2023-11-21 19:02:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-21 19:02:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-21 19:02:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 19:02:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 19:02:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-21 19:02:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-21 19:02:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 19:02:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 19:02:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure store_remote_port [2023-11-21 19:02:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure store_remote_port [2023-11-21 19:02:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 19:02:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 19:02:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure strnchr [2023-11-21 19:02:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure strnchr [2023-11-21 19:02:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtou16 [2023-11-21 19:02:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtou16 [2023-11-21 19:02:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:02:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:02:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:02:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:02:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 19:02:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 19:02:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:02:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-21 19:02:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-21 19:02:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure store_enabled [2023-11-21 19:02:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure store_enabled [2023-11-21 19:02:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_ip [2023-11-21 19:02:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_ip [2023-11-21 19:02:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2023-11-21 19:02:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2023-11-21 19:02:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cleanup_netconsole_14_2 [2023-11-21 19:02:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cleanup_netconsole_14_2 [2023-11-21 19:02:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:02:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:02:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure to_target [2023-11-21 19:02:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure to_target [2023-11-21 19:02:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-21 19:02:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-21 19:02:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_put [2023-11-21 19:02:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_put [2023-11-21 19:02:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:02:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_mac [2023-11-21 19:02:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_mac [2023-11-21 19:02:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure in6_pton [2023-11-21 19:02:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure in6_pton [2023-11-21 19:02:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:02:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 19:02:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 19:02:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:02:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 19:02:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 19:02:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:02:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 19:02:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure store_local_ip [2023-11-21 19:02:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure store_local_ip [2023-11-21 19:02:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure in_aton [2023-11-21 19:02:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure in_aton [2023-11-21 19:02:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 19:02:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 19:02:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-21 19:02:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-21 19:02:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure store_dev_name [2023-11-21 19:02:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure store_dev_name [2023-11-21 19:02:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure show_remote_port [2023-11-21 19:02:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure show_remote_port [2023-11-21 19:02:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure netconsole_target_attr_store [2023-11-21 19:02:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netconsole_target_attr_store [2023-11-21 19:02:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:02:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure store_local_port [2023-11-21 19:02:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure store_local_port [2023-11-21 19:02:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 19:02:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 19:02:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure config_item_name [2023-11-21 19:02:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure config_item_name [2023-11-21 19:02:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure show_local_port [2023-11-21 19:02:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure show_local_port [2023-11-21 19:02:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:02:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:02:40,393 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:02:40,397 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:02:40,578 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:02:43,243 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 19:02:43,391 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:02:44,112 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:02:44,113 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 19:02:44,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:02:44 BoogieIcfgContainer [2023-11-21 19:02:44,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:02:44,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:02:44,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:02:44,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:02:44,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:02:36" (1/3) ... [2023-11-21 19:02:44,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cf9e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:02:44, skipping insertion in model container [2023-11-21 19:02:44,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:39" (2/3) ... [2023-11-21 19:02:44,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cf9e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:02:44, skipping insertion in model container [2023-11-21 19:02:44,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:02:44" (3/3) ... [2023-11-21 19:02:44,124 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2023-11-21 19:02:44,144 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:02:44,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 19:02:44,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:02:44,230 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;@3e306cb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:02:44,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 19:02:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 1165 states, 694 states have (on average 1.3097982708933718) internal successors, (909), 703 states have internal predecessors, (909), 405 states have call successors, (405), 64 states have call predecessors, (405), 63 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2023-11-21 19:02:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2023-11-21 19:02:44,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:44,325 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:44,326 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:02:44,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1064244368, now seen corresponding path program 1 times [2023-11-21 19:02:44,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:44,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799731656] [2023-11-21 19:02:44,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:44,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 21756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21756 trivial. 0 not checked. [2023-11-21 19:02:46,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:46,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799731656] [2023-11-21 19:02:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799731656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:02:46,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:02:46,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:02:46,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507050601] [2023-11-21 19:02:46,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:02:46,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:02:46,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:46,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:02:46,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:46,671 INFO L87 Difference]: Start difference. First operand has 1165 states, 694 states have (on average 1.3097982708933718) internal successors, (909), 703 states have internal predecessors, (909), 405 states have call successors, (405), 64 states have call predecessors, (405), 63 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2023-11-21 19:02:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:47,739 INFO L93 Difference]: Finished difference Result 3070 states and 4539 transitions. [2023-11-21 19:02:47,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:02:47,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) Word has length 761 [2023-11-21 19:02:47,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:47,797 INFO L225 Difference]: With dead ends: 3070 [2023-11-21 19:02:47,797 INFO L226 Difference]: Without dead ends: 2045 [2023-11-21 19:02:47,819 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 [2023-11-21 19:02:47,824 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1406 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:47,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 2980 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 19:02:47,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2023-11-21 19:02:48,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2041. [2023-11-21 19:02:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1242 states have (on average 1.321256038647343) internal successors, (1641), 1258 states have internal predecessors, (1641), 675 states have call successors, (675), 122 states have call predecessors, (675), 121 states have return successors, (671), 671 states have call predecessors, (671), 671 states have call successors, (671) [2023-11-21 19:02:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2987 transitions. [2023-11-21 19:02:48,128 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2987 transitions. Word has length 761 [2023-11-21 19:02:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:48,132 INFO L495 AbstractCegarLoop]: Abstraction has 2041 states and 2987 transitions. [2023-11-21 19:02:48,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (77), 3 states have call predecessors, (77), 3 states have call successors, (77) [2023-11-21 19:02:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2987 transitions. [2023-11-21 19:02:48,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2023-11-21 19:02:48,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:48,173 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:48,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:02:48,174 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:02:48,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:48,175 INFO L85 PathProgramCache]: Analyzing trace with hash -424683454, now seen corresponding path program 1 times [2023-11-21 19:02:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:48,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32768189] [2023-11-21 19:02:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:48,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:49,392 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-21 19:02:49,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:49,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32768189] [2023-11-21 19:02:49,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32768189] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:02:49,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:02:49,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:02:49,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35533911] [2023-11-21 19:02:49,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:02:49,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:02:49,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:49,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:02:49,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:49,400 INFO L87 Difference]: Start difference. First operand 2041 states and 2987 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:50,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:50,196 INFO L93 Difference]: Finished difference Result 4925 states and 7151 transitions. [2023-11-21 19:02:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:02:50,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 789 [2023-11-21 19:02:50,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:50,224 INFO L225 Difference]: With dead ends: 4925 [2023-11-21 19:02:50,224 INFO L226 Difference]: Without dead ends: 3033 [2023-11-21 19:02:50,236 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 [2023-11-21 19:02:50,237 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 1383 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:50,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 3024 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 19:02:50,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2023-11-21 19:02:50,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3014. [2023-11-21 19:02:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3014 states, 1836 states have (on average 1.3202614379084967) internal successors, (2424), 1863 states have internal predecessors, (2424), 969 states have call successors, (969), 207 states have call predecessors, (969), 206 states have return successors, (965), 960 states have call predecessors, (965), 965 states have call successors, (965) [2023-11-21 19:02:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3014 states to 3014 states and 4358 transitions. [2023-11-21 19:02:50,518 INFO L78 Accepts]: Start accepts. Automaton has 3014 states and 4358 transitions. Word has length 789 [2023-11-21 19:02:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:50,520 INFO L495 AbstractCegarLoop]: Abstraction has 3014 states and 4358 transitions. [2023-11-21 19:02:50,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3014 states and 4358 transitions. [2023-11-21 19:02:50,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2023-11-21 19:02:50,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:50,535 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:50,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:02:50,536 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:02:50,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:50,537 INFO L85 PathProgramCache]: Analyzing trace with hash 214990092, now seen corresponding path program 1 times [2023-11-21 19:02:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:50,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993465381] [2023-11-21 19:02:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:50,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-21 19:02:51,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:51,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993465381] [2023-11-21 19:02:51,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993465381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:02:51,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:02:51,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:02:51,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188257083] [2023-11-21 19:02:51,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:02:51,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:02:51,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:51,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:02:51,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:51,481 INFO L87 Difference]: Start difference. First operand 3014 states and 4358 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:52,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:52,567 INFO L93 Difference]: Finished difference Result 7844 states and 11269 transitions. [2023-11-21 19:02:52,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:02:52,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 790 [2023-11-21 19:02:52,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:52,623 INFO L225 Difference]: With dead ends: 7844 [2023-11-21 19:02:52,623 INFO L226 Difference]: Without dead ends: 4979 [2023-11-21 19:02:52,642 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 [2023-11-21 19:02:52,646 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 1382 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:52,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1382 Valid, 3056 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 19:02:52,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2023-11-21 19:02:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4960. [2023-11-21 19:02:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4960 states, 3024 states have (on average 1.3194444444444444) internal successors, (3990), 3073 states have internal predecessors, (3990), 1557 states have call successors, (1557), 377 states have call predecessors, (1557), 376 states have return successors, (1553), 1538 states have call predecessors, (1553), 1553 states have call successors, (1553) [2023-11-21 19:02:53,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4960 states to 4960 states and 7100 transitions. [2023-11-21 19:02:53,077 INFO L78 Accepts]: Start accepts. Automaton has 4960 states and 7100 transitions. Word has length 790 [2023-11-21 19:02:53,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:53,079 INFO L495 AbstractCegarLoop]: Abstraction has 4960 states and 7100 transitions. [2023-11-21 19:02:53,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4960 states and 7100 transitions. [2023-11-21 19:02:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2023-11-21 19:02:53,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:53,093 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:53,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:02:53,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:02:53,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:53,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1093885858, now seen corresponding path program 1 times [2023-11-21 19:02:53,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:53,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820554564] [2023-11-21 19:02:53,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:53,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-21 19:02:53,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:53,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820554564] [2023-11-21 19:02:53,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820554564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:02:53,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:02:53,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:02:53,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142384236] [2023-11-21 19:02:53,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:02:53,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:02:53,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:53,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:02:53,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:53,725 INFO L87 Difference]: Start difference. First operand 4960 states and 7100 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:54,750 INFO L93 Difference]: Finished difference Result 13638 states and 19431 transitions. [2023-11-21 19:02:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:02:54,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 788 [2023-11-21 19:02:54,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:54,826 INFO L225 Difference]: With dead ends: 13638 [2023-11-21 19:02:54,826 INFO L226 Difference]: Without dead ends: 8827 [2023-11-21 19:02:54,927 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 [2023-11-21 19:02:54,930 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1384 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 3090 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:54,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 3090 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 19:02:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8827 states. [2023-11-21 19:02:55,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8827 to 8808. [2023-11-21 19:02:55,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8808 states, 5375 states have (on average 1.318325581395349) internal successors, (7086), 5468 states have internal predecessors, (7086), 2714 states have call successors, (2714), 717 states have call predecessors, (2714), 716 states have return successors, (2710), 2675 states have call predecessors, (2710), 2710 states have call successors, (2710) [2023-11-21 19:02:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8808 states to 8808 states and 12510 transitions. [2023-11-21 19:02:55,586 INFO L78 Accepts]: Start accepts. Automaton has 8808 states and 12510 transitions. Word has length 788 [2023-11-21 19:02:55,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:55,588 INFO L495 AbstractCegarLoop]: Abstraction has 8808 states and 12510 transitions. [2023-11-21 19:02:55,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand 8808 states and 12510 transitions. [2023-11-21 19:02:55,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2023-11-21 19:02:55,603 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:55,604 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:55,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:02:55,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:02:55,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash 755833079, now seen corresponding path program 1 times [2023-11-21 19:02:55,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:55,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344542673] [2023-11-21 19:02:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:55,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-21 19:02:56,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:56,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344542673] [2023-11-21 19:02:56,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344542673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:02:56,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:02:56,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:02:56,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015820402] [2023-11-21 19:02:56,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:02:56,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:02:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:02:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:56,215 INFO L87 Difference]: Start difference. First operand 8808 states and 12510 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:57,818 INFO L93 Difference]: Finished difference Result 25050 states and 35459 transitions. [2023-11-21 19:02:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:02:57,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 792 [2023-11-21 19:02:57,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:57,974 INFO L225 Difference]: With dead ends: 25050 [2023-11-21 19:02:57,974 INFO L226 Difference]: Without dead ends: 16391 [2023-11-21 19:02:58,026 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 [2023-11-21 19:02:58,028 INFO L413 NwaCegarLoop]: 1733 mSDtfsCounter, 1380 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:58,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 3225 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 19:02:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16391 states. [2023-11-21 19:02:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16391 to 16372. [2023-11-21 19:02:59,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16372 states, 10002 states have (on average 1.3167366526694662) internal successors, (13170), 10183 states have internal predecessors, (13170), 4971 states have call successors, (4971), 1397 states have call predecessors, (4971), 1396 states have return successors, (4967), 4892 states have call predecessors, (4967), 4967 states have call successors, (4967) [2023-11-21 19:02:59,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16372 states to 16372 states and 23108 transitions. [2023-11-21 19:02:59,464 INFO L78 Accepts]: Start accepts. Automaton has 16372 states and 23108 transitions. Word has length 792 [2023-11-21 19:02:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:59,466 INFO L495 AbstractCegarLoop]: Abstraction has 16372 states and 23108 transitions. [2023-11-21 19:02:59,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:02:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 16372 states and 23108 transitions. [2023-11-21 19:02:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2023-11-21 19:02:59,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:59,478 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:59,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:02:59,479 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:02:59,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:59,480 INFO L85 PathProgramCache]: Analyzing trace with hash 332874951, now seen corresponding path program 1 times [2023-11-21 19:02:59,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:59,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186784633] [2023-11-21 19:02:59,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-21 19:03:00,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:00,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186784633] [2023-11-21 19:03:00,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186784633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:00,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:00,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:03:00,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216301613] [2023-11-21 19:03:00,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:00,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:03:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:00,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:03:00,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:03:00,103 INFO L87 Difference]: Start difference. First operand 16372 states and 23108 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:03:02,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:02,260 INFO L93 Difference]: Finished difference Result 47434 states and 66775 transitions. [2023-11-21 19:03:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:03:02,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 791 [2023-11-21 19:03:02,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:02,432 INFO L225 Difference]: With dead ends: 47434 [2023-11-21 19:03:02,432 INFO L226 Difference]: Without dead ends: 31211 [2023-11-21 19:03:02,503 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 [2023-11-21 19:03:02,505 INFO L413 NwaCegarLoop]: 1798 mSDtfsCounter, 1381 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 3290 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:02,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 3290 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 19:03:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31211 states. [2023-11-21 19:03:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31211 to 31192. [2023-11-21 19:03:04,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31192 states, 19081 states have (on average 1.3147109690267806) internal successors, (25086), 19438 states have internal predecessors, (25086), 9352 states have call successors, (9352), 2757 states have call predecessors, (9352), 2756 states have return successors, (9348), 9193 states have call predecessors, (9348), 9348 states have call successors, (9348) [2023-11-21 19:03:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31192 states to 31192 states and 43786 transitions. [2023-11-21 19:03:05,120 INFO L78 Accepts]: Start accepts. Automaton has 31192 states and 43786 transitions. Word has length 791 [2023-11-21 19:03:05,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:05,122 INFO L495 AbstractCegarLoop]: Abstraction has 31192 states and 43786 transitions. [2023-11-21 19:03:05,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:03:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 31192 states and 43786 transitions. [2023-11-21 19:03:05,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2023-11-21 19:03:05,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:05,137 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:05,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 19:03:05,138 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:03:05,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:05,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1615065895, now seen corresponding path program 1 times [2023-11-21 19:03:05,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:05,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106018773] [2023-11-21 19:03:05,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:05,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:06,065 INFO L134 CoverageAnalysis]: Checked inductivity of 21759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21759 trivial. 0 not checked. [2023-11-21 19:03:06,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:06,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106018773] [2023-11-21 19:03:06,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106018773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:06,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:06,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:03:06,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257168898] [2023-11-21 19:03:06,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:06,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:03:06,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:03:06,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:03:06,070 INFO L87 Difference]: Start difference. First operand 31192 states and 43786 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:03:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:10,170 INFO L93 Difference]: Finished difference Result 91234 states and 127779 transitions. [2023-11-21 19:03:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:03:10,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) Word has length 793 [2023-11-21 19:03:10,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:10,613 INFO L225 Difference]: With dead ends: 91234 [2023-11-21 19:03:10,613 INFO L226 Difference]: Without dead ends: 60191 [2023-11-21 19:03:10,769 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 [2023-11-21 19:03:10,770 INFO L413 NwaCegarLoop]: 1867 mSDtfsCounter, 1379 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:10,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 3359 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 19:03:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60191 states. [2023-11-21 19:03:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60191 to 60172. [2023-11-21 19:03:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60172 states, 36864 states have (on average 1.3123372395833333) internal successors, (48378), 37573 states have internal predecessors, (48378), 17829 states have call successors, (17829), 5477 states have call predecessors, (17829), 5476 states have return successors, (17825), 17510 states have call predecessors, (17825), 17825 states have call successors, (17825) [2023-11-21 19:03:15,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60172 states to 60172 states and 84032 transitions. [2023-11-21 19:03:15,229 INFO L78 Accepts]: Start accepts. Automaton has 60172 states and 84032 transitions. Word has length 793 [2023-11-21 19:03:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:15,231 INFO L495 AbstractCegarLoop]: Abstraction has 60172 states and 84032 transitions. [2023-11-21 19:03:15,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (81), 3 states have call predecessors, (81), 3 states have call successors, (81) [2023-11-21 19:03:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 60172 states and 84032 transitions. [2023-11-21 19:03:15,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2023-11-21 19:03:15,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:15,246 INFO L195 NwaCegarLoop]: trace histogram [75, 74, 74, 74, 74, 74, 74, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:15,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 19:03:15,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:03:15,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:15,248 INFO L85 PathProgramCache]: Analyzing trace with hash -34374820, now seen corresponding path program 1 times [2023-11-21 19:03:15,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:15,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713039509] [2023-11-21 19:03:15,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:15,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms