./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ --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 fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:21:48,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:21:48,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:21:48,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:21:48,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:21:48,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:21:48,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:21:48,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:21:48,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:21:48,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:21:48,943 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:21:48,944 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:21:48,944 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:21:48,945 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:21:48,945 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:21:48,946 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:21:48,946 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:21:48,947 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:21:48,947 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:21:48,948 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:21:48,955 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:21:48,956 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:21:48,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:21:48,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:21:48,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:21:48,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:21:48,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:21:48,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:21:48,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:21:48,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:21:48,962 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:21:48,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:21:48,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:21:48,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:48,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:21:48,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:21:48,964 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:21:48,964 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:21:48,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:21:48,965 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:21:48,965 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:21:48,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:21:48,966 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2023-11-19 05:21:49,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:21:49,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:21:49,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:21:49,288 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:21:49,289 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:21:49,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2023-11-19 05:21:52,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:53,630 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:53,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2023-11-19 05:21:53,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/data/cc436b62b/e746376d492c42e79281b52fe270b862/FLAG53ca3038f [2023-11-19 05:21:53,708 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/data/cc436b62b/e746376d492c42e79281b52fe270b862 [2023-11-19 05:21:53,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:53,713 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:53,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:53,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:53,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:53,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:53" (1/1) ... [2023-11-19 05:21:53,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233fa267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:53, skipping insertion in model container [2023-11-19 05:21:53,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:53" (1/1) ... [2023-11-19 05:21:54,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:58,029 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2023-11-19 05:21:58,034 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2023-11-19 05:21:58,035 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2023-11-19 05:21:58,035 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2023-11-19 05:21:58,048 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:58,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:58,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5400] [2023-11-19 05:21:58,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5408] [2023-11-19 05:21:58,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7344] [2023-11-19 05:21:58,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [7351] [2023-11-19 05:21:58,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7358] [2023-11-19 05:21:58,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7371] [2023-11-19 05:21:59,188 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2023-11-19 05:21:59,189 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2023-11-19 05:21:59,189 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2023-11-19 05:21:59,190 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_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2023-11-19 05:21:59,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:59,513 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:59,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59 WrapperNode [2023-11-19 05:21:59,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:59,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:59,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:59,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:59,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:21:59,990 INFO L138 Inliner]: procedures = 495, calls = 2673, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5576 [2023-11-19 05:21:59,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:59,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:59,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:59,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:22:00,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:22:00,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:22:00,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:22:00,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:22:00,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (1/1) ... [2023-11-19 05:22:00,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:00,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:22:00,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb9ac54b-dc8b-488c-bcb2-bba1473e07a1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:22:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2023-11-19 05:22:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2023-11-19 05:22:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:22:00,536 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:22:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2023-11-19 05:22:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2023-11-19 05:22:00,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:22:00,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:22:00,538 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2023-11-19 05:22:00,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2023-11-19 05:22:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2023-11-19 05:22:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2023-11-19 05:22:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:22:00,539 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:22:00,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:22:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:22:00,541 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2023-11-19 05:22:00,541 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2023-11-19 05:22:00,542 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2023-11-19 05:22:00,544 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2023-11-19 05:22:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:22:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:22:00,545 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2023-11-19 05:22:00,545 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2023-11-19 05:22:00,546 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2023-11-19 05:22:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2023-11-19 05:22:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2023-11-19 05:22:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2023-11-19 05:22:00,547 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2023-11-19 05:22:00,547 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2023-11-19 05:22:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 05:22:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 05:22:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2023-11-19 05:22:00,548 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2023-11-19 05:22:00,548 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2023-11-19 05:22:00,549 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2023-11-19 05:22:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2023-11-19 05:22:00,549 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2023-11-19 05:22:00,549 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2023-11-19 05:22:00,549 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2023-11-19 05:22:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2023-11-19 05:22:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2023-11-19 05:22:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:22:00,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:22:00,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:22:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:22:00,551 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2023-11-19 05:22:00,551 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2023-11-19 05:22:00,551 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2023-11-19 05:22:00,552 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2023-11-19 05:22:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:22:00,552 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-19 05:22:00,553 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-19 05:22:00,554 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:22:00,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:22:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:22:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 05:22:00,555 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 05:22:00,555 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2023-11-19 05:22:00,556 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2023-11-19 05:22:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2023-11-19 05:22:00,556 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2023-11-19 05:22:00,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:22:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:22:00,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:22:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2023-11-19 05:22:00,557 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2023-11-19 05:22:00,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:22:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-19 05:22:00,558 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-19 05:22:00,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:22:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:22:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2023-11-19 05:22:00,559 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2023-11-19 05:22:00,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:22:00,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:22:00,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:22:00,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:22:00,561 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2023-11-19 05:22:00,561 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2023-11-19 05:22:00,561 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2023-11-19 05:22:00,562 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2023-11-19 05:22:00,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 05:22:00,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 05:22:00,562 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:22:00,562 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:22:00,563 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2023-11-19 05:22:00,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2023-11-19 05:22:00,563 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2023-11-19 05:22:00,563 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2023-11-19 05:22:00,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:22:00,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:22:00,564 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-19 05:22:00,564 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-19 05:22:00,564 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2023-11-19 05:22:00,564 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2023-11-19 05:22:00,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:22:00,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:22:00,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:22:00,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 05:22:00,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 05:22:00,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:22:00,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:22:00,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:22:00,567 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:22:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:22:00,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2023-11-19 05:22:00,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2023-11-19 05:22:00,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:22:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2023-11-19 05:22:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2023-11-19 05:22:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:22:00,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:22:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 05:22:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 05:22:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:22:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:22:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2023-11-19 05:22:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2023-11-19 05:22:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 05:22:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 05:22:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2023-11-19 05:22:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2023-11-19 05:22:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:22:00,573 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:22:00,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:22:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:22:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2023-11-19 05:22:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2023-11-19 05:22:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2023-11-19 05:22:00,574 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2023-11-19 05:22:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2023-11-19 05:22:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2023-11-19 05:22:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2023-11-19 05:22:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2023-11-19 05:22:00,577 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-19 05:22:00,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-19 05:22:00,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:22:00,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:22:00,582 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2023-11-19 05:22:00,583 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2023-11-19 05:22:00,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:22:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:22:00,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:22:00,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:22:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2023-11-19 05:22:00,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2023-11-19 05:22:00,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:22:00,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:22:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:22:00,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:22:00,596 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2023-11-19 05:22:00,596 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2023-11-19 05:22:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2023-11-19 05:22:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2023-11-19 05:22:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2023-11-19 05:22:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2023-11-19 05:22:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:22:00,597 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:22:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2023-11-19 05:22:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2023-11-19 05:22:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2023-11-19 05:22:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2023-11-19 05:22:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:22:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:22:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2023-11-19 05:22:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2023-11-19 05:22:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2023-11-19 05:22:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2023-11-19 05:22:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2023-11-19 05:22:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2023-11-19 05:22:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:22:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:22:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:22:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2023-11-19 05:22:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2023-11-19 05:22:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2023-11-19 05:22:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2023-11-19 05:22:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:22:00,601 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:22:00,601 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:22:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2023-11-19 05:22:00,602 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2023-11-19 05:22:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:22:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:22:00,602 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:22:00,602 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2023-11-19 05:22:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2023-11-19 05:22:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:22:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:22:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2023-11-19 05:22:00,603 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2023-11-19 05:22:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:22:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:22:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2023-11-19 05:22:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2023-11-19 05:22:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2023-11-19 05:22:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2023-11-19 05:22:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:22:00,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:22:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-19 05:22:00,605 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-19 05:22:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2023-11-19 05:22:00,605 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2023-11-19 05:22:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2023-11-19 05:22:00,606 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2023-11-19 05:22:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 05:22:00,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 05:22:00,606 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:22:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:22:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:22:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:22:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2023-11-19 05:22:00,607 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2023-11-19 05:22:00,607 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2023-11-19 05:22:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2023-11-19 05:22:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:22:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:22:00,608 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2023-11-19 05:22:00,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2023-11-19 05:22:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:22:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-19 05:22:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-19 05:22:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:22:00,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:22:00,609 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2023-11-19 05:22:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2023-11-19 05:22:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2023-11-19 05:22:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2023-11-19 05:22:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2023-11-19 05:22:00,610 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2023-11-19 05:22:00,610 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2023-11-19 05:22:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2023-11-19 05:22:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 05:22:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 05:22:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2023-11-19 05:22:00,611 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2023-11-19 05:22:00,611 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2023-11-19 05:22:00,612 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2023-11-19 05:22:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:22:00,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:22:00,612 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2023-11-19 05:22:00,612 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2023-11-19 05:22:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2023-11-19 05:22:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2023-11-19 05:22:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-19 05:22:00,613 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-19 05:22:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:22:00,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-19 05:22:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-19 05:22:00,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-19 05:22:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-19 05:22:00,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:22:00,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:22:00,614 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-19 05:22:00,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-19 05:22:01,703 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:22:01,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:02,195 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:22:04,448 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1380#1.base, #t~mem1380#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2023-11-19 05:22:04,449 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1380#1.base, #t~mem1380#1.offset, 129, 0); srcloc: null [2023-11-19 05:22:04,449 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1380#1.base, #t~mem1380#1.offset; [2023-11-19 05:22:09,077 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:22:09,346 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:22:14,181 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:22:14,185 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:22:14,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:14 BoogieIcfgContainer [2023-11-19 05:22:14,212 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:22:14,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:22:14,217 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:22:14,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:22:14,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:53" (1/3) ... [2023-11-19 05:22:14,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf4e53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:14, skipping insertion in model container [2023-11-19 05:22:14,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:59" (2/3) ... [2023-11-19 05:22:14,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf4e53c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:22:14, skipping insertion in model container [2023-11-19 05:22:14,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:22:14" (3/3) ... [2023-11-19 05:22:14,231 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2023-11-19 05:22:14,257 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:22:14,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 05:22:14,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:22:14,423 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;@2bd63290, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:22:14,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 05:22:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 2200 states, 1244 states have (on average 1.3159163987138263) internal successors, (1637), 1314 states have internal predecessors, (1637), 834 states have call successors, (834), 120 states have call predecessors, (834), 119 states have return successors, (827), 784 states have call predecessors, (827), 827 states have call successors, (827) [2023-11-19 05:22:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-19 05:22:14,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:14,498 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2023-11-19 05:22:14,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:22:14,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:14,508 INFO L85 PathProgramCache]: Analyzing trace with hash -455308135, now seen corresponding path program 1 times [2023-11-19 05:22:14,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:14,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981419994] [2023-11-19 05:22:14,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:14,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:16,042 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2023-11-19 05:22:16,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:16,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981419994] [2023-11-19 05:22:16,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981419994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:16,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:16,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:16,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710188182] [2023-11-19 05:22:16,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:16,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:16,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:16,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:16,116 INFO L87 Difference]: Start difference. First operand has 2200 states, 1244 states have (on average 1.3159163987138263) internal successors, (1637), 1314 states have internal predecessors, (1637), 834 states have call successors, (834), 120 states have call predecessors, (834), 119 states have return successors, (827), 784 states have call predecessors, (827), 827 states have call successors, (827) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:22:19,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:19,035 INFO L93 Difference]: Finished difference Result 6456 states and 9804 transitions. [2023-11-19 05:22:19,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 174 [2023-11-19 05:22:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:19,138 INFO L225 Difference]: With dead ends: 6456 [2023-11-19 05:22:19,138 INFO L226 Difference]: Without dead ends: 4276 [2023-11-19 05:22:19,179 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 [2023-11-19 05:22:19,184 INFO L413 NwaCegarLoop]: 2886 mSDtfsCounter, 3157 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3157 SdHoareTripleChecker+Valid, 5726 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:19,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3157 Valid, 5726 Invalid, 857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 05:22:19,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2023-11-19 05:22:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4272. [2023-11-19 05:22:19,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 2431 states have (on average 1.3122171945701357) internal successors, (3190), 2570 states have internal predecessors, (3190), 1604 states have call successors, (1604), 235 states have call predecessors, (1604), 234 states have return successors, (1600), 1514 states have call predecessors, (1600), 1600 states have call successors, (1600) [2023-11-19 05:22:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 6394 transitions. [2023-11-19 05:22:19,835 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 6394 transitions. Word has length 174 [2023-11-19 05:22:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:19,839 INFO L495 AbstractCegarLoop]: Abstraction has 4272 states and 6394 transitions. [2023-11-19 05:22:19,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:22:19,840 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 6394 transitions. [2023-11-19 05:22:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-19 05:22:19,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:19,860 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:19,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:22:19,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:22:19,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:19,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1271832933, now seen corresponding path program 1 times [2023-11-19 05:22:19,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:19,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624433124] [2023-11-19 05:22:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:19,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:20,384 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 05:22:20,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:20,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624433124] [2023-11-19 05:22:20,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624433124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:20,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:20,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433024816] [2023-11-19 05:22:20,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:20,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:20,389 INFO L87 Difference]: Start difference. First operand 4272 states and 6394 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-19 05:22:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:23,701 INFO L93 Difference]: Finished difference Result 12442 states and 18640 transitions. [2023-11-19 05:22:23,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:23,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 181 [2023-11-19 05:22:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:23,806 INFO L225 Difference]: With dead ends: 12442 [2023-11-19 05:22:23,806 INFO L226 Difference]: Without dead ends: 8201 [2023-11-19 05:22:23,854 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 [2023-11-19 05:22:23,856 INFO L413 NwaCegarLoop]: 2896 mSDtfsCounter, 2982 mSDsluCounter, 2848 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2982 SdHoareTripleChecker+Valid, 5744 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:23,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2982 Valid, 5744 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-19 05:22:23,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8201 states. [2023-11-19 05:22:24,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8201 to 8171. [2023-11-19 05:22:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8171 states, 4636 states have (on average 1.310828300258844) internal successors, (6077), 4908 states have internal predecessors, (6077), 3075 states have call successors, (3075), 458 states have call predecessors, (3075), 457 states have return successors, (3095), 2892 states have call predecessors, (3095), 3071 states have call successors, (3095) [2023-11-19 05:22:24,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8171 states to 8171 states and 12247 transitions. [2023-11-19 05:22:24,741 INFO L78 Accepts]: Start accepts. Automaton has 8171 states and 12247 transitions. Word has length 181 [2023-11-19 05:22:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:24,742 INFO L495 AbstractCegarLoop]: Abstraction has 8171 states and 12247 transitions. [2023-11-19 05:22:24,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-19 05:22:24,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8171 states and 12247 transitions. [2023-11-19 05:22:24,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-19 05:22:24,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:24,752 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:24,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:22:24,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:22:24,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:24,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1835489170, now seen corresponding path program 1 times [2023-11-19 05:22:24,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:24,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717405857] [2023-11-19 05:22:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:24,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 05:22:25,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:25,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717405857] [2023-11-19 05:22:25,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717405857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:25,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:25,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:25,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956751591] [2023-11-19 05:22:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:25,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:25,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:25,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:25,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:25,077 INFO L87 Difference]: Start difference. First operand 8171 states and 12247 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:22:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:28,189 INFO L93 Difference]: Finished difference Result 23107 states and 34575 transitions. [2023-11-19 05:22:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:28,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2023-11-19 05:22:28,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:28,360 INFO L225 Difference]: With dead ends: 23107 [2023-11-19 05:22:28,360 INFO L226 Difference]: Without dead ends: 14967 [2023-11-19 05:22:28,429 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 [2023-11-19 05:22:28,431 INFO L413 NwaCegarLoop]: 3108 mSDtfsCounter, 2695 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 5935 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:28,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 5935 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 05:22:28,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14967 states. [2023-11-19 05:22:29,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14967 to 14925. [2023-11-19 05:22:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14925 states, 8506 states have (on average 1.3081354338114273) internal successors, (11127), 9016 states have internal predecessors, (11127), 5523 states have call successors, (5523), 894 states have call predecessors, (5523), 893 states have return successors, (5653), 5158 states have call predecessors, (5653), 5519 states have call successors, (5653) [2023-11-19 05:22:29,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14925 states to 14925 states and 22303 transitions. [2023-11-19 05:22:29,921 INFO L78 Accepts]: Start accepts. Automaton has 14925 states and 22303 transitions. Word has length 183 [2023-11-19 05:22:29,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:29,923 INFO L495 AbstractCegarLoop]: Abstraction has 14925 states and 22303 transitions. [2023-11-19 05:22:29,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 05:22:29,924 INFO L276 IsEmpty]: Start isEmpty. Operand 14925 states and 22303 transitions. [2023-11-19 05:22:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-19 05:22:29,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:29,934 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:22:29,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:22:29,935 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:22:29,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:29,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1388195367, now seen corresponding path program 1 times [2023-11-19 05:22:29,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:29,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442885943] [2023-11-19 05:22:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:29,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 05:22:30,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:30,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442885943] [2023-11-19 05:22:30,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442885943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:30,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:30,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:30,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644071454] [2023-11-19 05:22:30,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:30,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:30,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:30,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:30,472 INFO L87 Difference]: Start difference. First operand 14925 states and 22303 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)