./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-ethernet-micrel-ks8851.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_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/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_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/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_601d258e-0f4f-463c-9e50-7608f8777192/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 adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:56:28,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:56:28,926 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:56:28,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:56:28,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:56:28,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:56:28,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:56:28,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:56:28,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:56:28,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:56:28,958 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:56:28,959 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:56:28,959 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:56:28,960 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:56:28,961 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:56:28,961 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:56:28,962 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:56:28,962 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:56:28,963 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:56:28,964 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:56:28,964 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:56:28,965 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:56:28,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:56:28,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:56:28,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:56:28,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:56:28,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:56:28,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:56:28,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:56:28,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:56:28,970 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:56:28,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:56:28,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:56:28,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:28,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:56:28,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:56:28,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:56:28,972 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:56:28,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:56:28,973 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:56:28,973 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:56:28,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:56:28,974 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_601d258e-0f4f-463c-9e50-7608f8777192/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 [2023-11-19 04:56:29,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:56:29,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:56:29,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:56:29,278 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:56:29,279 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:56:29,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-19 04:56:32,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:56:33,075 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:56:33,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-19 04:56:33,144 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/data/1f2b192be/85a008a5e1d44d728c83299c73050b9a/FLAGb8e2f5098 [2023-11-19 04:56:33,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/data/1f2b192be/85a008a5e1d44d728c83299c73050b9a [2023-11-19 04:56:33,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:56:33,175 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:56:33,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:33,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:56:33,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:56:33,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:56:33" (1/1) ... [2023-11-19 04:56:33,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6d481a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:33, skipping insertion in model container [2023-11-19 04:56:33,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:56:33" (1/1) ... [2023-11-19 04:56:33,397 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:56:35,752 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2023-11-19 04:56:35,757 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2023-11-19 04:56:35,758 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2023-11-19 04:56:35,758 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2023-11-19 04:56:35,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:35,812 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:56:36,018 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"); [5204] [2023-11-19 04:56:36,020 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)); [5211] [2023-11-19 04:56:36,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5218] [2023-11-19 04:56:36,360 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2023-11-19 04:56:36,364 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2023-11-19 04:56:36,364 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2023-11-19 04:56:36,365 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_601d258e-0f4f-463c-9e50-7608f8777192/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2023-11-19 04:56:36,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:36,572 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:56:36,579 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:56:36,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36 WrapperNode [2023-11-19 04:56:36,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:36,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:36,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:56:36,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:56:36,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:36,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:36,941 INFO L138 Inliner]: procedures = 396, calls = 1652, calls flagged for inlining = 231, calls inlined = 193, statements flattened = 4504 [2023-11-19 04:56:36,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:36,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:56:36,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:56:36,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:56:36,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:36,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:36,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:36,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:37,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:37,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:37,169 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:37,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:37,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:56:37,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:56:37,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:56:37,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:56:37,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (1/1) ... [2023-11-19 04:56:37,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:37,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:56:37,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:56:37,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601d258e-0f4f-463c-9e50-7608f8777192/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:56:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:56:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:56:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:56:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:56:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2023-11-19 04:56:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2023-11-19 04:56:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:56:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:56:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2023-11-19 04:56:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2023-11-19 04:56:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 04:56:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 04:56:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:56:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:56:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 04:56:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 04:56:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-19 04:56:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-19 04:56:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:56:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2023-11-19 04:56:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2023-11-19 04:56:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:56:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:56:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:56:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:56:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:56:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:56:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:56:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:56:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-19 04:56:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-19 04:56:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:56:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-19 04:56:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-19 04:56:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:56:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:56:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 04:56:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 04:56:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:56:37,316 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:56:37,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:56:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:56:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:56:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:56:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-11-19 04:56:37,317 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-11-19 04:56:37,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:56:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:56:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:56:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:56:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:56:37,318 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-19 04:56:37,318 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-19 04:56:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:56:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:56:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:56:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:56:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_ks8851_net [2023-11-19 04:56:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_ks8851_net [2023-11-19 04:56:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2023-11-19 04:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2023-11-19 04:56:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:56:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:56:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:56:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:56:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:56:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-19 04:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-19 04:56:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-19 04:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-19 04:56:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2023-11-19 04:56:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2023-11-19 04:56:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-19 04:56:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-19 04:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_probe [2023-11-19 04:56:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_probe [2023-11-19 04:56:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:56:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:56:37,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:56:37,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:56:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:56:37,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:56:37,327 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_put [2023-11-19 04:56:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_put [2023-11-19 04:56:37,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_ks8851_net [2023-11-19 04:56:37,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_ks8851_net [2023-11-19 04:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 04:56:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 04:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:56:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2023-11-19 04:56:37,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2023-11-19 04:56:37,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:56:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:56:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2023-11-19 04:56:37,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2023-11-19 04:56:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:56:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:56:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:56:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-19 04:56:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-19 04:56:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:56:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:56:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:56:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:56:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2023-11-19 04:56:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2023-11-19 04:56:37,333 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-19 04:56:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-19 04:56:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:56:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:56:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:56:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:56:37,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-19 04:56:37,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-19 04:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-19 04:56:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-19 04:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2023-11-19 04:56:37,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2023-11-19 04:56:37,335 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:56:37,336 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:56:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:56:37,336 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:56:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:56:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2023-11-19 04:56:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2023-11-19 04:56:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:56:37,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:56:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:56:37,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:56:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-19 04:56:37,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-19 04:56:37,338 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:56:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:56:37,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:56:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:56:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:56:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:56:37,344 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 04:56:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 04:56:37,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:56:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:56:37,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 04:56:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 04:56:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:56:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:56:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:56:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:56:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2023-11-19 04:56:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2023-11-19 04:56:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_get_eeprom_len [2023-11-19 04:56:37,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_get_eeprom_len [2023-11-19 04:56:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2023-11-19 04:56:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2023-11-19 04:56:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 04:56:37,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 04:56:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:56:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:56:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:56:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2023-11-19 04:56:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2023-11-19 04:56:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_nway_reset [2023-11-19 04:56:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_nway_reset [2023-11-19 04:56:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-19 04:56:37,355 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-19 04:56:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_remove [2023-11-19 04:56:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_remove [2023-11-19 04:56:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:56:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:56:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-19 04:56:37,356 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-19 04:56:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2023-11-19 04:56:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2023-11-19 04:56:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:56:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:56:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:56:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:56:37,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:56:38,056 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:56:38,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:56:38,227 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:56:43,203 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:56:43,305 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:56:45,399 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:56:45,400 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:56:45,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:45 BoogieIcfgContainer [2023-11-19 04:56:45,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:56:45,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:56:45,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:56:45,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:56:45,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:56:33" (1/3) ... [2023-11-19 04:56:45,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5847b9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:45, skipping insertion in model container [2023-11-19 04:56:45,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:36" (2/3) ... [2023-11-19 04:56:45,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5847b9b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:45, skipping insertion in model container [2023-11-19 04:56:45,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:45" (3/3) ... [2023-11-19 04:56:45,427 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-19 04:56:45,446 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:56:45,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:56:45,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:56:45,558 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;@568362d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:56:45,558 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:56:45,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 1216 states, 739 states have (on average 1.3288227334235454) internal successors, (982), 752 states have internal predecessors, (982), 394 states have call successors, (394), 83 states have call predecessors, (394), 82 states have return successors, (385), 384 states have call predecessors, (385), 385 states have call successors, (385) [2023-11-19 04:56:45,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-19 04:56:45,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:45,618 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:45,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:56:45,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 2059175900, now seen corresponding path program 1 times [2023-11-19 04:56:45,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:45,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822081295] [2023-11-19 04:56:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:45,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:46,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-19 04:56:46,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822081295] [2023-11-19 04:56:46,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822081295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:46,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:46,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812587098] [2023-11-19 04:56:46,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:46,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:46,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:46,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:46,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:46,667 INFO L87 Difference]: Start difference. First operand has 1216 states, 739 states have (on average 1.3288227334235454) internal successors, (982), 752 states have internal predecessors, (982), 394 states have call successors, (394), 83 states have call predecessors, (394), 82 states have return successors, (385), 384 states have call predecessors, (385), 385 states have call successors, (385) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 04:56:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:49,377 INFO L93 Difference]: Finished difference Result 3403 states and 5110 transitions. [2023-11-19 04:56:49,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:49,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 191 [2023-11-19 04:56:49,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:49,443 INFO L225 Difference]: With dead ends: 3403 [2023-11-19 04:56:49,444 INFO L226 Difference]: Without dead ends: 2204 [2023-11-19 04:56:49,462 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 04:56:49,466 INFO L413 NwaCegarLoop]: 1446 mSDtfsCounter, 1510 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:49,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 2848 Invalid, 626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-19 04:56:49,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2023-11-19 04:56:49,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2185. [2023-11-19 04:56:49,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 1329 states have (on average 1.325056433408578) internal successors, (1761), 1355 states have internal predecessors, (1761), 694 states have call successors, (694), 162 states have call predecessors, (694), 159 states have return successors, (732), 679 states have call predecessors, (732), 690 states have call successors, (732) [2023-11-19 04:56:49,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 3187 transitions. [2023-11-19 04:56:49,710 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 3187 transitions. Word has length 191 [2023-11-19 04:56:49,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:49,712 INFO L495 AbstractCegarLoop]: Abstraction has 2185 states and 3187 transitions. [2023-11-19 04:56:49,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 04:56:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 3187 transitions. [2023-11-19 04:56:49,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-19 04:56:49,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:49,718 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2023-11-19 04:56:49,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:56:49,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:56:49,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash -214137927, now seen corresponding path program 1 times [2023-11-19 04:56:49,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:49,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233820844] [2023-11-19 04:56:49,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:49,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:49,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2023-11-19 04:56:50,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:50,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233820844] [2023-11-19 04:56:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233820844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:50,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:50,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678323577] [2023-11-19 04:56:50,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:50,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:50,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:50,069 INFO L87 Difference]: Start difference. First operand 2185 states and 3187 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 04:56:53,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:53,360 INFO L93 Difference]: Finished difference Result 6398 states and 9330 transitions. [2023-11-19 04:56:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 194 [2023-11-19 04:56:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:53,406 INFO L225 Difference]: With dead ends: 6398 [2023-11-19 04:56:53,407 INFO L226 Difference]: Without dead ends: 4248 [2023-11-19 04:56:53,422 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 04:56:53,424 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 1603 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:53,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 2792 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 04:56:53,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2023-11-19 04:56:53,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 4244. [2023-11-19 04:56:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4244 states, 2600 states have (on average 1.3242307692307693) internal successors, (3443), 2644 states have internal predecessors, (3443), 1326 states have call successors, (1326), 320 states have call predecessors, (1326), 315 states have return successors, (1406), 1303 states have call predecessors, (1406), 1322 states have call successors, (1406) [2023-11-19 04:56:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 6175 transitions. [2023-11-19 04:56:53,800 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 6175 transitions. Word has length 194 [2023-11-19 04:56:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:53,801 INFO L495 AbstractCegarLoop]: Abstraction has 4244 states and 6175 transitions. [2023-11-19 04:56:53,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 04:56:53,802 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 6175 transitions. [2023-11-19 04:56:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-19 04:56:53,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:53,808 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:53,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:56:53,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:56:53,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1536172607, now seen corresponding path program 1 times [2023-11-19 04:56:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:53,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142120185] [2023-11-19 04:56:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:54,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-19 04:56:54,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:54,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142120185] [2023-11-19 04:56:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142120185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:54,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:54,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:54,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494201679] [2023-11-19 04:56:54,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:54,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:54,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:54,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:54,192 INFO L87 Difference]: Start difference. First operand 4244 states and 6175 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:56:57,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:58,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:58,894 INFO L93 Difference]: Finished difference Result 12226 states and 17709 transitions. [2023-11-19 04:56:58,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:58,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2023-11-19 04:56:58,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:58,972 INFO L225 Difference]: With dead ends: 12226 [2023-11-19 04:56:58,972 INFO L226 Difference]: Without dead ends: 8017 [2023-11-19 04:56:59,003 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 04:56:59,006 INFO L413 NwaCegarLoop]: 1398 mSDtfsCounter, 1462 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:59,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 2754 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-19 04:56:59,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2023-11-19 04:56:59,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7992. [2023-11-19 04:56:59,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7992 states, 4864 states have (on average 1.3053042763157894) internal successors, (6349), 4958 states have internal predecessors, (6349), 2500 states have call successors, (2500), 634 states have call predecessors, (2500), 625 states have return successors, (2600), 2447 states have call predecessors, (2600), 2496 states have call successors, (2600) [2023-11-19 04:56:59,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 11449 transitions. [2023-11-19 04:56:59,680 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 11449 transitions. Word has length 195 [2023-11-19 04:56:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:59,682 INFO L495 AbstractCegarLoop]: Abstraction has 7992 states and 11449 transitions. [2023-11-19 04:56:59,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:56:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 11449 transitions. [2023-11-19 04:56:59,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-19 04:56:59,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:59,688 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:59,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:56:59,688 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:56:59,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:59,689 INFO L85 PathProgramCache]: Analyzing trace with hash 743073360, now seen corresponding path program 1 times [2023-11-19 04:56:59,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:59,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595972402] [2023-11-19 04:56:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:59,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-19 04:57:00,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:00,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595972402] [2023-11-19 04:57:00,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595972402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:00,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:00,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091048171] [2023-11-19 04:57:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:00,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:00,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:00,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:00,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:00,214 INFO L87 Difference]: Start difference. First operand 7992 states and 11449 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, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:57:04,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:04,066 INFO L93 Difference]: Finished difference Result 19306 states and 27579 transitions. [2023-11-19 04:57:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:57:04,066 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, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 196 [2023-11-19 04:57:04,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:04,176 INFO L225 Difference]: With dead ends: 19306 [2023-11-19 04:57:04,177 INFO L226 Difference]: Without dead ends: 11349 [2023-11-19 04:57:04,224 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 04:57:04,228 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 1556 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:04,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2798 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-19 04:57:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states. [2023-11-19 04:57:05,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11349 to 11324. [2023-11-19 04:57:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11324 states, 6870 states have (on average 1.2921397379912665) internal successors, (8877), 7020 states have internal predecessors, (8877), 3528 states have call successors, (3528), 936 states have call predecessors, (3528), 923 states have return successors, (3672), 3435 states have call predecessors, (3672), 3524 states have call successors, (3672) [2023-11-19 04:57:05,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11324 states to 11324 states and 16077 transitions. [2023-11-19 04:57:05,172 INFO L78 Accepts]: Start accepts. Automaton has 11324 states and 16077 transitions. Word has length 196 [2023-11-19 04:57:05,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:05,174 INFO L495 AbstractCegarLoop]: Abstraction has 11324 states and 16077 transitions. [2023-11-19 04:57:05,174 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, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:57:05,174 INFO L276 IsEmpty]: Start isEmpty. Operand 11324 states and 16077 transitions. [2023-11-19 04:57:05,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-19 04:57:05,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:05,181 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:05,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:57:05,181 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:57:05,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:05,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1010096371, now seen corresponding path program 1 times [2023-11-19 04:57:05,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:05,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827645585] [2023-11-19 04:57:05,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:05,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2023-11-19 04:57:05,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:05,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827645585] [2023-11-19 04:57:05,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827645585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:05,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:05,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913992334] [2023-11-19 04:57:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:05,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:05,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:05,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:05,669 INFO L87 Difference]: Start difference. First operand 11324 states and 16077 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-19 04:57:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:10,326 INFO L93 Difference]: Finished difference Result 27771 states and 39369 transitions. [2023-11-19 04:57:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:57:10,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 215 [2023-11-19 04:57:10,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:10,437 INFO L225 Difference]: With dead ends: 27771 [2023-11-19 04:57:10,437 INFO L226 Difference]: Without dead ends: 16482 [2023-11-19 04:57:10,497 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 04:57:10,498 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 1571 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:10,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 2959 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 04:57:10,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16482 states. [2023-11-19 04:57:11,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16482 to 16449. [2023-11-19 04:57:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16449 states, 9973 states have (on average 1.2853705003509475) internal successors, (12819), 10217 states have internal predecessors, (12819), 5106 states have call successors, (5106), 1386 states have call predecessors, (5106), 1367 states have return successors, (5286), 4947 states have call predecessors, (5286), 5102 states have call successors, (5286) [2023-11-19 04:57:11,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16449 states to 16449 states and 23211 transitions. [2023-11-19 04:57:11,668 INFO L78 Accepts]: Start accepts. Automaton has 16449 states and 23211 transitions. Word has length 215 [2023-11-19 04:57:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:11,669 INFO L495 AbstractCegarLoop]: Abstraction has 16449 states and 23211 transitions. [2023-11-19 04:57:11,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-19 04:57:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 16449 states and 23211 transitions. [2023-11-19 04:57:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-11-19 04:57:11,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:11,674 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2023-11-19 04:57:11,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:57:11,675 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_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:57:11,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash -444048147, now seen corresponding path program 1 times [2023-11-19 04:57:11,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527108203] [2023-11-19 04:57:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2023-11-19 04:57:12,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:12,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527108203] [2023-11-19 04:57:12,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527108203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:12,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:12,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:12,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834389028] [2023-11-19 04:57:12,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:12,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:12,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:12,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:12,074 INFO L87 Difference]: Start difference. First operand 16449 states and 23211 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26)