./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 cf1a7837 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:10:49,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:49,848 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:10:49,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:49,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:49,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:49,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:49,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:49,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:49,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:49,905 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:49,907 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:49,907 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:49,909 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:49,910 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:49,910 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:49,910 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:49,911 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:49,911 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:49,912 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:49,913 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:49,913 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:49,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:49,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:49,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:49,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:49,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:49,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:49,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:49,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:49,919 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:49,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:49,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:49,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:49,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:49,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:49,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:49,922 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:49,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:49,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:49,922 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:49,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:49,923 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 [2023-11-12 00:10:50,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:50,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:50,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:50,291 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:50,292 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:50,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-12 00:10:53,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:54,068 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:54,069 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-12 00:10:54,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/data/730854d7e/adbe04fec84a4ae8bf02351c4ceaaea9/FLAG57eb85ef3 [2023-11-12 00:10:54,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/data/730854d7e/adbe04fec84a4ae8bf02351c4ceaaea9 [2023-11-12 00:10:54,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:54,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:54,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:54,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:54,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:54,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:54" (1/1) ... [2023-11-12 00:10:54,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b26201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:54, skipping insertion in model container [2023-11-12 00:10:54,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:54" (1/1) ... [2023-11-12 00:10:54,372 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:57,185 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,189 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,190 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,191 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:57,240 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:57,392 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] [2023-11-12 00:10:57,394 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] [2023-11-12 00:10:57,394 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5218] [2023-11-12 00:10:57,588 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,589 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,589 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,590 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_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/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] [2023-11-12 00:10:57,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:57,825 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:57,833 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:57,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57 WrapperNode [2023-11-12 00:10:57,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:57,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:57,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:57,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:57,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,169 INFO L138 Inliner]: procedures = 396, calls = 1652, calls flagged for inlining = 231, calls inlined = 193, statements flattened = 4504 [2023-11-12 00:10:58,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:58,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:58,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:58,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:58,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:58,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:58,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:58,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:58,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:58,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:58,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:58,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:58,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ae3792a-bcd5-4dc2-992c-ffee5360ab0d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:10:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:10:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:10:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:10:58,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2023-11-12 00:10:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2023-11-12 00:10:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:10:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:10:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2023-11-12 00:10:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2023-11-12 00:10:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-12 00:10:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-12 00:10:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:10:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:10:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:10:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:10:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-12 00:10:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-12 00:10:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:10:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2023-11-12 00:10:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2023-11-12 00:10:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:10:58,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:10:58,566 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:10:58,566 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:10:58,567 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:10:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:10:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:10:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:10:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-12 00:10:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-12 00:10:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-12 00:10:58,568 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-12 00:10:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:10:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:10:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:10:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:10:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:10:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:10:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:10:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:10:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:10:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:10:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-11-12 00:10:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-11-12 00:10:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:10:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:10:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:10:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:10:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-12 00:10:58,571 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-12 00:10:58,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:10:58,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:10:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:10:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:10:58,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_ks8851_net [2023-11-12 00:10:58,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_ks8851_net [2023-11-12 00:10:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2023-11-12 00:10:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2023-11-12 00:10:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:10:58,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:10:58,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:10:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:10:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-12 00:10:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-12 00:10:58,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-12 00:10:58,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-12 00:10:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2023-11-12 00:10:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2023-11-12 00:10:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-12 00:10:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-12 00:10:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_probe [2023-11-12 00:10:58,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_probe [2023-11-12 00:10:58,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:10:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:10:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:10:58,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:10:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:10:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:10:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:10:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:10:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:10:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_put [2023-11-12 00:10:58,578 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_put [2023-11-12 00:10:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_ks8851_net [2023-11-12 00:10:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_ks8851_net [2023-11-12 00:10:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-12 00:10:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-12 00:10:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:10:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:10:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2023-11-12 00:10:58,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2023-11-12 00:10:58,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:10:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:10:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2023-11-12 00:10:58,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2023-11-12 00:10:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:10:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:10:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-12 00:10:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-12 00:10:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:10:58,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:10:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:10:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:10:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2023-11-12 00:10:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2023-11-12 00:10:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-12 00:10:58,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-12 00:10:58,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:10:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:10:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:10:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:10:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-12 00:10:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-12 00:10:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-12 00:10:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-12 00:10:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2023-11-12 00:10:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2023-11-12 00:10:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:10:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:10:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:10:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:10:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2023-11-12 00:10:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2023-11-12 00:10:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:10:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:10:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:10:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-12 00:10:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-12 00:10:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:10:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:10:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:10:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:10:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:10:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:10:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-12 00:10:58,593 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-12 00:10:58,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 00:10:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 00:10:58,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-12 00:10:58,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-12 00:10:58,599 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:10:58,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:10:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:10:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:10:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2023-11-12 00:10:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2023-11-12 00:10:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_get_eeprom_len [2023-11-12 00:10:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_get_eeprom_len [2023-11-12 00:10:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2023-11-12 00:10:58,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2023-11-12 00:10:58,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-12 00:10:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-12 00:10:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:10:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:10:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2023-11-12 00:10:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2023-11-12 00:10:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_nway_reset [2023-11-12 00:10:58,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_nway_reset [2023-11-12 00:10:58,601 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-12 00:10:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-12 00:10:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_remove [2023-11-12 00:10:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_remove [2023-11-12 00:10:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:10:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:10:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-12 00:10:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-12 00:10:58,602 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2023-11-12 00:10:58,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2023-11-12 00:10:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:10:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:10:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:58,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:10:58,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:10:59,328 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:59,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:59,430 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:11:05,291 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:11:05,438 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:07,468 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:07,468 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:11:07,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:07 BoogieIcfgContainer [2023-11-12 00:11:07,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:07,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:07,478 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:07,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:07,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:54" (1/3) ... [2023-11-12 00:11:07,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ecf2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:07, skipping insertion in model container [2023-11-12 00:11:07,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (2/3) ... [2023-11-12 00:11:07,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ecf2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:07, skipping insertion in model container [2023-11-12 00:11:07,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:07" (3/3) ... [2023-11-12 00:11:07,486 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-12 00:11:07,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:07,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:11:07,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:07,625 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;@40cbf6e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:07,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:11:07,638 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) [2023-11-12 00:11:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-12 00:11:07,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:07,686 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] [2023-11-12 00:11:07,686 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)] === [2023-11-12 00:11:07,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:07,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2059175900, now seen corresponding path program 1 times [2023-11-12 00:11:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:07,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484322587] [2023-11-12 00:11:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:07,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-12 00:11:08,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:08,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484322587] [2023-11-12 00:11:08,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484322587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:08,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:08,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:08,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176543930] [2023-11-12 00:11:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:08,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:08,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:08,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:08,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:08,889 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) [2023-11-12 00:11:11,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:13,700 INFO L93 Difference]: Finished difference Result 3403 states and 5110 transitions. [2023-11-12 00:11:13,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:13,703 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 [2023-11-12 00:11:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:13,743 INFO L225 Difference]: With dead ends: 3403 [2023-11-12 00:11:13,743 INFO L226 Difference]: Without dead ends: 2204 [2023-11-12 00:11:13,778 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 [2023-11-12 00:11:13,782 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1509 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:13,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 2849 Invalid, 626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-12 00:11:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2023-11-12 00:11:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2185. [2023-11-12 00:11:14,141 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) [2023-11-12 00:11:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 3187 transitions. [2023-11-12 00:11:14,175 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 3187 transitions. Word has length 191 [2023-11-12 00:11:14,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:14,184 INFO L495 AbstractCegarLoop]: Abstraction has 2185 states and 3187 transitions. [2023-11-12 00:11:14,184 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) [2023-11-12 00:11:14,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 3187 transitions. [2023-11-12 00:11:14,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-12 00:11:14,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:14,197 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] [2023-11-12 00:11:14,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:11:14,198 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)] === [2023-11-12 00:11:14,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:14,199 INFO L85 PathProgramCache]: Analyzing trace with hash -214137927, now seen corresponding path program 1 times [2023-11-12 00:11:14,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:14,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280681832] [2023-11-12 00:11:14,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:14,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2023-11-12 00:11:14,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:14,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280681832] [2023-11-12 00:11:14,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280681832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:14,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:14,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:14,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87109983] [2023-11-12 00:11:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:14,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:14,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:14,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:14,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:14,722 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) [2023-11-12 00:11:19,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:21,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:24,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:24,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:24,275 INFO L93 Difference]: Finished difference Result 6398 states and 9330 transitions. [2023-11-12 00:11:24,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:24,276 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 [2023-11-12 00:11:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:24,316 INFO L225 Difference]: With dead ends: 6398 [2023-11-12 00:11:24,317 INFO L226 Difference]: Without dead ends: 4248 [2023-11-12 00:11:24,329 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 [2023-11-12 00:11:24,330 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 1603 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:24,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 2792 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 631 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2023-11-12 00:11:24,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2023-11-12 00:11:24,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 4244. [2023-11-12 00:11:24,590 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) [2023-11-12 00:11:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4244 states to 4244 states and 6175 transitions. [2023-11-12 00:11:24,632 INFO L78 Accepts]: Start accepts. Automaton has 4244 states and 6175 transitions. Word has length 194 [2023-11-12 00:11:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:24,633 INFO L495 AbstractCegarLoop]: Abstraction has 4244 states and 6175 transitions. [2023-11-12 00:11:24,634 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) [2023-11-12 00:11:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4244 states and 6175 transitions. [2023-11-12 00:11:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-12 00:11:24,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:24,639 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] [2023-11-12 00:11:24,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:11:24,639 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)] === [2023-11-12 00:11:24,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:24,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1536172607, now seen corresponding path program 1 times [2023-11-12 00:11:24,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:24,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145716703] [2023-11-12 00:11:24,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:24,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-12 00:11:25,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:25,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145716703] [2023-11-12 00:11:25,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145716703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:25,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:25,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:25,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958195703] [2023-11-12 00:11:25,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:25,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:25,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:25,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:25,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:25,060 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) [2023-11-12 00:11:30,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:31,812 INFO L93 Difference]: Finished difference Result 12226 states and 17709 transitions. [2023-11-12 00:11:31,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:31,813 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 [2023-11-12 00:11:31,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:31,881 INFO L225 Difference]: With dead ends: 12226 [2023-11-12 00:11:31,881 INFO L226 Difference]: Without dead ends: 8017 [2023-11-12 00:11:31,908 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 [2023-11-12 00:11:31,910 INFO L413 NwaCegarLoop]: 1398 mSDtfsCounter, 1462 mSDsluCounter, 1356 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:31,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 2754 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 693 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2023-11-12 00:11:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8017 states. [2023-11-12 00:11:32,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8017 to 7992. [2023-11-12 00:11:32,510 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) [2023-11-12 00:11:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 11449 transitions. [2023-11-12 00:11:32,563 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 11449 transitions. Word has length 195 [2023-11-12 00:11:32,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:32,565 INFO L495 AbstractCegarLoop]: Abstraction has 7992 states and 11449 transitions. [2023-11-12 00:11:32,566 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) [2023-11-12 00:11:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 11449 transitions. [2023-11-12 00:11:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-12 00:11:32,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:32,571 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] [2023-11-12 00:11:32,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:11:32,571 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)] === [2023-11-12 00:11:32,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:32,573 INFO L85 PathProgramCache]: Analyzing trace with hash 743073360, now seen corresponding path program 1 times [2023-11-12 00:11:32,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:32,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636840985] [2023-11-12 00:11:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:32,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-12 00:11:32,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:32,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636840985] [2023-11-12 00:11:32,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636840985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:32,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:32,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:32,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601594080] [2023-11-12 00:11:32,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:32,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:32,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:32,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:32,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:32,939 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) [2023-11-12 00:11:37,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:40,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:41,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:41,009 INFO L93 Difference]: Finished difference Result 19306 states and 27579 transitions. [2023-11-12 00:11:41,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:41,010 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 [2023-11-12 00:11:41,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:41,105 INFO L225 Difference]: With dead ends: 19306 [2023-11-12 00:11:41,105 INFO L226 Difference]: Without dead ends: 11349 [2023-11-12 00:11:41,147 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 [2023-11-12 00:11:41,148 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 1556 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:41,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 2798 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 647 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2023-11-12 00:11:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11349 states.