./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:06:10,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:06:11,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:06:11,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:06:11,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:06:11,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:06:11,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:06:11,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:06:11,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:06:11,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:06:11,117 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:06:11,118 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:06:11,119 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:06:11,120 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:06:11,121 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:06:11,121 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:06:11,122 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:06:11,122 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:06:11,123 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:06:11,123 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:06:11,124 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:06:11,124 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:06:11,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:06:11,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:06:11,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:06:11,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:06:11,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:06:11,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:06:11,129 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:06:11,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:06:11,130 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:06:11,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:06:11,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:06:11,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:06:11,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:11,132 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:06:11,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:06:11,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:06:11,133 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:06:11,133 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:06:11,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:06:11,134 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:06:11,135 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:06:11,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:06:11,136 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 [2023-11-25 00:06:11,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:06:11,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:06:11,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:06:11,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:06:11,490 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:06:11,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-25 00:06:14,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:06:15,331 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:06:15,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-25 00:06:15,386 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/data/494310770/7b6212b4a0094aa0babc389b966fea5f/FLAG295e7eca6 [2023-11-25 00:06:15,404 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/data/494310770/7b6212b4a0094aa0babc389b966fea5f [2023-11-25 00:06:15,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:06:15,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:06:15,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:15,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:06:15,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:06:15,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:15" (1/1) ... [2023-11-25 00:06:15,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a54d507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:15, skipping insertion in model container [2023-11-25 00:06:15,422 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:06:15" (1/1) ... [2023-11-25 00:06:15,609 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:06:18,254 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,258 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,259 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,259 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:18,369 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:06:18,488 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] [2023-11-25 00:06:18,490 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] [2023-11-25 00:06:18,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5218] [2023-11-25 00:06:18,780 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,780 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,781 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,781 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_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/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] [2023-11-25 00:06:18,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:06:19,023 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:06:19,031 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:06:19,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19 WrapperNode [2023-11-25 00:06:19,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:06:19,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:19,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:06:19,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:06:19,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,159 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,333 INFO L138 Inliner]: procedures = 396, calls = 1652, calls flagged for inlining = 231, calls inlined = 193, statements flattened = 4570 [2023-11-25 00:06:19,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:06:19,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:06:19,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:06:19,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:06:19,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,530 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:06:19,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:06:19,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:06:19,666 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:06:19,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (1/1) ... [2023-11-25 00:06:19,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:06:19,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:06:19,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:06:19,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ff172be-fe39-44cd-8a05-4472c0fe6ed4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:06:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:06:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:06:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:06:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:06:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2023-11-25 00:06:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2023-11-25 00:06:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-25 00:06:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-25 00:06:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2023-11-25 00:06:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2023-11-25 00:06:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-25 00:06:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-25 00:06:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-25 00:06:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-25 00:06:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-25 00:06:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-25 00:06:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-25 00:06:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-25 00:06:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-25 00:06:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2023-11-25 00:06:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2023-11-25 00:06:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:06:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:06:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-25 00:06:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-25 00:06:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-25 00:06:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-25 00:06:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:06:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:06:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-25 00:06:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-25 00:06:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:06:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-25 00:06:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-25 00:06:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:06:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:06:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-25 00:06:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-25 00:06:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-25 00:06:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-25 00:06:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:06:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-25 00:06:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-25 00:06:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:06:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2023-11-25 00:06:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2023-11-25 00:06:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:06:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:06:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-25 00:06:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-25 00:06:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:06:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-25 00:06:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-25 00:06:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:06:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:06:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:06:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:06:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_ks8851_net [2023-11-25 00:06:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_ks8851_net [2023-11-25 00:06:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2023-11-25 00:06:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2023-11-25 00:06:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:06:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:06:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:06:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:06:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:06:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-25 00:06:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-25 00:06:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-25 00:06:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-25 00:06:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2023-11-25 00:06:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2023-11-25 00:06:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:06:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-25 00:06:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-25 00:06:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_probe [2023-11-25 00:06:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_probe [2023-11-25 00:06:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:06:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:06:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-25 00:06:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-25 00:06:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:06:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:06:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:06:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:06:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:06:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_put [2023-11-25 00:06:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_put [2023-11-25 00:06:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_ks8851_net [2023-11-25 00:06:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_ks8851_net [2023-11-25 00:06:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-25 00:06:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-25 00:06:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:06:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:06:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2023-11-25 00:06:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2023-11-25 00:06:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:06:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:06:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2023-11-25 00:06:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2023-11-25 00:06:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:06:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:06:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-25 00:06:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-25 00:06:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-25 00:06:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-25 00:06:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:06:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:06:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:06:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:06:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2023-11-25 00:06:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2023-11-25 00:06:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-25 00:06:19,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-25 00:06:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:06:19,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:06:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:06:19,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:06:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-25 00:06:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-25 00:06:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-25 00:06:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-25 00:06:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2023-11-25 00:06:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2023-11-25 00:06:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-25 00:06:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-25 00:06:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:06:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-25 00:06:19,780 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-25 00:06:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2023-11-25 00:06:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2023-11-25 00:06:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-25 00:06:19,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-25 00:06:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:06:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:06:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-25 00:06:19,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-25 00:06:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-25 00:06:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-25 00:06:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:06:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:06:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:06:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:06:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-25 00:06:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-25 00:06:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-25 00:06:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-25 00:06:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:06:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:06:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:06:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:06:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:06:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:06:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2023-11-25 00:06:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2023-11-25 00:06:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_get_eeprom_len [2023-11-25 00:06:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_get_eeprom_len [2023-11-25 00:06:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2023-11-25 00:06:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2023-11-25 00:06:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:06:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:06:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:06:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:06:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:06:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2023-11-25 00:06:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2023-11-25 00:06:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_nway_reset [2023-11-25 00:06:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_nway_reset [2023-11-25 00:06:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-25 00:06:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-25 00:06:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_remove [2023-11-25 00:06:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_remove [2023-11-25 00:06:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:06:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:06:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-25 00:06:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-25 00:06:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2023-11-25 00:06:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2023-11-25 00:06:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-25 00:06:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-25 00:06:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:06:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:06:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:06:20,490 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:06:20,497 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:06:20,592 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:06:27,116 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:06:27,262 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:06:29,313 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:06:29,313 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-25 00:06:29,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:29 BoogieIcfgContainer [2023-11-25 00:06:29,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:06:29,320 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:06:29,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:06:29,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:06:29,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:06:15" (1/3) ... [2023-11-25 00:06:29,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b3363f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:29, skipping insertion in model container [2023-11-25 00:06:29,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:06:19" (2/3) ... [2023-11-25 00:06:29,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b3363f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:29, skipping insertion in model container [2023-11-25 00:06:29,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:29" (3/3) ... [2023-11-25 00:06:29,329 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2023-11-25 00:06:29,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:06:29,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:06:29,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:06:29,473 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;@addbd5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:06:29,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:06:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 1221 states, 744 states have (on average 1.3266129032258065) internal successors, (987), 755 states have internal predecessors, (987), 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) [2023-11-25 00:06:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-25 00:06:29,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:29,522 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] [2023-11-25 00:06:29,522 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)] === [2023-11-25 00:06:29,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash -209729221, now seen corresponding path program 1 times [2023-11-25 00:06:29,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:29,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152293217] [2023-11-25 00:06:29,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:29,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:30,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-25 00:06:30,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:30,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152293217] [2023-11-25 00:06:30,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152293217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:30,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:30,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:30,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749769660] [2023-11-25 00:06:30,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:30,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:30,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:30,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:30,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:30,643 INFO L87 Difference]: Start difference. First operand has 1221 states, 744 states have (on average 1.3266129032258065) internal successors, (987), 755 states have internal predecessors, (987), 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) [2023-11-25 00:06:33,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:35,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:36,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:36,351 INFO L93 Difference]: Finished difference Result 3417 states and 5124 transitions. [2023-11-25 00:06:36,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:36,353 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 [2023-11-25 00:06:36,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:36,388 INFO L225 Difference]: With dead ends: 3417 [2023-11-25 00:06:36,389 INFO L226 Difference]: Without dead ends: 2213 [2023-11-25 00:06:36,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:36,488 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1514 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:36,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 2858 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-25 00:06:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2213 states. [2023-11-25 00:06:36,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2213 to 2194. [2023-11-25 00:06:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1338 states have (on average 1.3228699551569507) internal successors, (1770), 1361 states have internal predecessors, (1770), 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) [2023-11-25 00:06:36,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 3196 transitions. [2023-11-25 00:06:36,787 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 3196 transitions. Word has length 191 [2023-11-25 00:06:36,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:36,792 INFO L495 AbstractCegarLoop]: Abstraction has 2194 states and 3196 transitions. [2023-11-25 00:06:36,792 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) [2023-11-25 00:06:36,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 3196 transitions. [2023-11-25 00:06:36,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-25 00:06:36,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:36,806 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] [2023-11-25 00:06:36,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:06:36,807 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)] === [2023-11-25 00:06:36,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:36,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1930698416, now seen corresponding path program 1 times [2023-11-25 00:06:36,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:36,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289265155] [2023-11-25 00:06:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2023-11-25 00:06:37,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:37,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289265155] [2023-11-25 00:06:37,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289265155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:37,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:37,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:37,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72720179] [2023-11-25 00:06:37,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:37,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:37,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:37,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:37,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:37,224 INFO L87 Difference]: Start difference. First operand 2194 states and 3196 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) [2023-11-25 00:06:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:41,920 INFO L93 Difference]: Finished difference Result 6425 states and 9357 transitions. [2023-11-25 00:06:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:41,921 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 [2023-11-25 00:06:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:41,957 INFO L225 Difference]: With dead ends: 6425 [2023-11-25 00:06:41,958 INFO L226 Difference]: Without dead ends: 4266 [2023-11-25 00:06:41,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:41,972 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 1608 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:41,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 2802 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-25 00:06:41,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2023-11-25 00:06:42,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 4262. [2023-11-25 00:06:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4262 states, 2618 states have (on average 1.3220015278838808) internal successors, (3461), 2656 states have internal predecessors, (3461), 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) [2023-11-25 00:06:42,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 6193 transitions. [2023-11-25 00:06:42,273 INFO L78 Accepts]: Start accepts. Automaton has 4262 states and 6193 transitions. Word has length 194 [2023-11-25 00:06:42,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:42,274 INFO L495 AbstractCegarLoop]: Abstraction has 4262 states and 6193 transitions. [2023-11-25 00:06:42,274 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) [2023-11-25 00:06:42,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4262 states and 6193 transitions. [2023-11-25 00:06:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-11-25 00:06:42,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:42,279 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] [2023-11-25 00:06:42,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:06:42,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:06:42,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:42,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2064647316, now seen corresponding path program 1 times [2023-11-25 00:06:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:42,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929870387] [2023-11-25 00:06:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-25 00:06:42,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:42,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929870387] [2023-11-25 00:06:42,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929870387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:42,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:42,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:42,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716013049] [2023-11-25 00:06:42,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:42,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:42,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:42,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:42,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:42,614 INFO L87 Difference]: Start difference. First operand 4262 states and 6193 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) [2023-11-25 00:06:48,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:48,459 INFO L93 Difference]: Finished difference Result 12280 states and 17763 transitions. [2023-11-25 00:06:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:48,460 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 [2023-11-25 00:06:48,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:48,528 INFO L225 Difference]: With dead ends: 12280 [2023-11-25 00:06:48,529 INFO L226 Difference]: Without dead ends: 8053 [2023-11-25 00:06:48,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:48,559 INFO L413 NwaCegarLoop]: 1403 mSDtfsCounter, 1467 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:48,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 2764 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-25 00:06:48,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2023-11-25 00:06:49,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 8028. [2023-11-25 00:06:49,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8028 states, 4900 states have (on average 1.3030612244897959) internal successors, (6385), 4982 states have internal predecessors, (6385), 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) [2023-11-25 00:06:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8028 states to 8028 states and 11485 transitions. [2023-11-25 00:06:49,351 INFO L78 Accepts]: Start accepts. Automaton has 8028 states and 11485 transitions. Word has length 195 [2023-11-25 00:06:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:49,353 INFO L495 AbstractCegarLoop]: Abstraction has 8028 states and 11485 transitions. [2023-11-25 00:06:49,354 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) [2023-11-25 00:06:49,355 INFO L276 IsEmpty]: Start isEmpty. Operand 8028 states and 11485 transitions. [2023-11-25 00:06:49,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-25 00:06:49,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:49,360 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] [2023-11-25 00:06:49,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:06:49,361 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)] === [2023-11-25 00:06:49,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:49,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1852415514, now seen corresponding path program 1 times [2023-11-25 00:06:49,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:49,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262636395] [2023-11-25 00:06:49,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:49,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2023-11-25 00:06:49,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:49,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262636395] [2023-11-25 00:06:49,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262636395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:49,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:49,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:49,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837687377] [2023-11-25 00:06:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:49,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:49,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:49,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:49,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:49,741 INFO L87 Difference]: Start difference. First operand 8028 states and 11485 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) [2023-11-25 00:06:54,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:55,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:55,723 INFO L93 Difference]: Finished difference Result 19396 states and 27669 transitions. [2023-11-25 00:06:55,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:55,728 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 [2023-11-25 00:06:55,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:55,859 INFO L225 Difference]: With dead ends: 19396 [2023-11-25 00:06:55,859 INFO L226 Difference]: Without dead ends: 11403 [2023-11-25 00:06:55,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:55,909 INFO L413 NwaCegarLoop]: 1420 mSDtfsCounter, 1561 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:55,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 2808 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 647 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2023-11-25 00:06:55,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11403 states. [2023-11-25 00:06:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11403 to 11378. [2023-11-25 00:06:56,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11378 states, 6924 states have (on average 1.2898613518197575) internal successors, (8931), 7056 states have internal predecessors, (8931), 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) [2023-11-25 00:06:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11378 states to 11378 states and 16131 transitions. [2023-11-25 00:06:56,710 INFO L78 Accepts]: Start accepts. Automaton has 11378 states and 16131 transitions. Word has length 196 [2023-11-25 00:06:56,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:56,711 INFO L495 AbstractCegarLoop]: Abstraction has 11378 states and 16131 transitions. [2023-11-25 00:06:56,712 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) [2023-11-25 00:06:56,712 INFO L276 IsEmpty]: Start isEmpty. Operand 11378 states and 16131 transitions. [2023-11-25 00:06:56,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-25 00:06:56,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:56,717 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] [2023-11-25 00:06:56,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:06:56,718 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)] === [2023-11-25 00:06:56,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:56,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1279709869, now seen corresponding path program 1 times [2023-11-25 00:06:56,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:56,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433197194] [2023-11-25 00:06:56,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:56,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2023-11-25 00:06:57,190 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:57,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433197194] [2023-11-25 00:06:57,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433197194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:57,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:57,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:57,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946714561] [2023-11-25 00:06:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:57,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:57,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:57,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:57,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:57,195 INFO L87 Difference]: Start difference. First operand 11378 states and 16131 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)