./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:55:38,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:55:39,008 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:55:39,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:55:39,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:55:39,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:55:39,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:55:39,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:55:39,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:55:39,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:55:39,058 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:55:39,059 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:55:39,059 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:55:39,059 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:55:39,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:55:39,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:55:39,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:55:39,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:55:39,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:55:39,062 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:55:39,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:55:39,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:55:39,062 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:55:39,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:55:39,062 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2024-11-14 03:55:39,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:55:39,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:55:39,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:55:39,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:55:39,363 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:55:39,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i Unable to find full path for "g++" [2024-11-14 03:55:41,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:55:42,167 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:55:42,168 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2024-11-14 03:55:42,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/data/0f4fa90ec/4da73cff8a504a4fbcdb51dd94e28ba4/FLAGd24d27b6d [2024-11-14 03:55:42,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/data/0f4fa90ec/4da73cff8a504a4fbcdb51dd94e28ba4 [2024-11-14 03:55:42,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:55:42,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:55:42,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:55:42,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:55:42,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:55:42,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:55:42" (1/1) ... [2024-11-14 03:55:42,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69722c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:42, skipping insertion in model container [2024-11-14 03:55:42,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:55:42" (1/1) ... [2024-11-14 03:55:42,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:55:45,765 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2024-11-14 03:55:45,769 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2024-11-14 03:55:45,770 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2024-11-14 03:55:45,772 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2024-11-14 03:55:45,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:55:45,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:55:46,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5400] [2024-11-14 03:55:46,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5408] [2024-11-14 03:55:46,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7344] [2024-11-14 03:55:46,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [7351] [2024-11-14 03:55:46,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7358] [2024-11-14 03:55:46,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7371] [2024-11-14 03:55:46,982 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2024-11-14 03:55:46,983 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2024-11-14 03:55:46,984 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2024-11-14 03:55:46,984 WARN L250 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_50f4d6db-d888-4da5-aaad-6aa61253b9c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2024-11-14 03:55:46,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:55:47,279 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:55:47,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47 WrapperNode [2024-11-14 03:55:47,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:55:47,283 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:55:47,283 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:55:47,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:55:47,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,412 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,627 INFO L138 Inliner]: procedures = 494, calls = 2673, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5731 [2024-11-14 03:55:47,628 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:55:47,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:55:47,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:55:47,629 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:55:47,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,892 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:47,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:48,015 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:48,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:55:48,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:55:48,070 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:55:48,070 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:55:48,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (1/1) ... [2024-11-14 03:55:48,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:55:48,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:48,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:55:48,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50f4d6db-d888-4da5-aaad-6aa61253b9c3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:55:48,157 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2024-11-14 03:55:48,158 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2024-11-14 03:55:48,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-14 03:55:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-14 03:55:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2024-11-14 03:55:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2024-11-14 03:55:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 03:55:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 03:55:48,159 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2024-11-14 03:55:48,159 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2024-11-14 03:55:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2024-11-14 03:55:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2024-11-14 03:55:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 03:55:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 03:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 03:55:48,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 03:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2024-11-14 03:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-14 03:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 03:55:48,163 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2024-11-14 03:55:48,163 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2024-11-14 03:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2024-11-14 03:55:48,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2024-11-14 03:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:55:48,164 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-14 03:55:48,166 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-14 03:55:48,166 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 03:55:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 03:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 03:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-14 03:55:48,167 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-14 03:55:48,167 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2024-11-14 03:55:48,168 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2024-11-14 03:55:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 03:55:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2024-11-14 03:55:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2024-11-14 03:55:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-14 03:55:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-14 03:55:48,169 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2024-11-14 03:55:48,169 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2024-11-14 03:55:48,170 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2024-11-14 03:55:48,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 03:55:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 03:55:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2024-11-14 03:55:48,171 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2024-11-14 03:55:48,171 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2024-11-14 03:55:48,174 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2024-11-14 03:55:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:55:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 03:55:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-14 03:55:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 03:55:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 03:55:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2024-11-14 03:55:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:55:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2024-11-14 03:55:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2024-11-14 03:55:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2024-11-14 03:55:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-14 03:55:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-14 03:55:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2024-11-14 03:55:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2024-11-14 03:55:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2024-11-14 03:55:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2024-11-14 03:55:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2024-11-14 03:55:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2024-11-14 03:55:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:55:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:55:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2024-11-14 03:55:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2024-11-14 03:55:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2024-11-14 03:55:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2024-11-14 03:55:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 03:55:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 03:55:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2024-11-14 03:55:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2024-11-14 03:55:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2024-11-14 03:55:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2024-11-14 03:55:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2024-11-14 03:55:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2024-11-14 03:55:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-14 03:55:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2024-11-14 03:55:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2024-11-14 03:55:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2024-11-14 03:55:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 03:55:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 03:55:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2024-11-14 03:55:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2024-11-14 03:55:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2024-11-14 03:55:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2024-11-14 03:55:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2024-11-14 03:55:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2024-11-14 03:55:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2024-11-14 03:55:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2024-11-14 03:55:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-14 03:55:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2024-11-14 03:55:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2024-11-14 03:55:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 03:55:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2024-11-14 03:55:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2024-11-14 03:55:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2024-11-14 03:55:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2024-11-14 03:55:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:55:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-11-14 03:55:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-11-14 03:55:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2024-11-14 03:55:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2024-11-14 03:55:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 03:55:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 03:55:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2024-11-14 03:55:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2024-11-14 03:55:49,391 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:55:49,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:55:50,061 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 03:55:52,659 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1505#1.base, #t~mem1505#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8);#t~ret1506#1.base, #t~ret1506#1.offset := 129, 0; [2024-11-14 03:55:52,660 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1505#1.base, #t~mem1505#1.offset, #t~ret1506#1.base, #t~ret1506#1.offset); srcloc: null [2024-11-14 03:55:52,660 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1505#1.base, #t~mem1505#1.offset;havoc #t~ret1506#1.base, #t~ret1506#1.offset; [2024-11-14 03:56:00,382 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 03:56:02,044 INFO L? ?]: Removed 2469 outVars from TransFormulas that were not future-live. [2024-11-14 03:56:02,044 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:56:05,269 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:56:05,269 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:56:05,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:05 BoogieIcfgContainer [2024-11-14 03:56:05,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:56:05,272 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:56:05,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:56:05,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:56:05,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:55:42" (1/3) ... [2024-11-14 03:56:05,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9899938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:05, skipping insertion in model container [2024-11-14 03:56:05,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:55:47" (2/3) ... [2024-11-14 03:56:05,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9899938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:56:05, skipping insertion in model container [2024-11-14 03:56:05,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:56:05" (3/3) ... [2024-11-14 03:56:05,281 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2024-11-14 03:56:05,298 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:56:05,301 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i that has 121 procedures, 2214 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2024-11-14 03:56:05,436 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:56:05,454 INFO L333 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, 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;@25522c06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:56:05,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 03:56:05,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 2212 states, 1256 states have (on average 1.3128980891719746) internal successors, (1649), 1326 states have internal predecessors, (1649), 834 states have call successors, (834), 120 states have call predecessors, (834), 119 states have return successors, (827), 785 states have call predecessors, (827), 827 states have call successors, (827) [2024-11-14 03:56:05,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-14 03:56:05,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:05,503 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:05,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:56:05,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:05,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1381357508, now seen corresponding path program 1 times [2024-11-14 03:56:05,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:05,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551133224] [2024-11-14 03:56:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:05,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2024-11-14 03:56:10,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551133224] [2024-11-14 03:56:10,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551133224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:10,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:10,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:10,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875711532] [2024-11-14 03:56:10,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:10,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:10,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:10,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:10,315 INFO L87 Difference]: Start difference. First operand has 2212 states, 1256 states have (on average 1.3128980891719746) internal successors, (1649), 1326 states have internal predecessors, (1649), 834 states have call successors, (834), 120 states have call predecessors, (834), 119 states have return successors, (827), 785 states have call predecessors, (827), 827 states have call successors, (827) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-14 03:56:12,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:14,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:22,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:22,278 INFO L93 Difference]: Finished difference Result 6492 states and 9840 transitions. [2024-11-14 03:56:22,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:22,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 175 [2024-11-14 03:56:22,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:22,366 INFO L225 Difference]: With dead ends: 6492 [2024-11-14 03:56:22,367 INFO L226 Difference]: Without dead ends: 4300 [2024-11-14 03:56:22,396 INFO L431 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 [2024-11-14 03:56:22,399 INFO L432 NwaCegarLoop]: 2887 mSDtfsCounter, 3168 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3168 SdHoareTripleChecker+Valid, 5728 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:22,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3168 Valid, 5728 Invalid, 879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 868 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2024-11-14 03:56:22,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2024-11-14 03:56:22,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 4296. [2024-11-14 03:56:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 2455 states have (on average 1.3091649694501017) internal successors, (3214), 2594 states have internal predecessors, (3214), 1604 states have call successors, (1604), 235 states have call predecessors, (1604), 234 states have return successors, (1600), 1516 states have call predecessors, (1600), 1600 states have call successors, (1600) [2024-11-14 03:56:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 6418 transitions. [2024-11-14 03:56:22,899 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 6418 transitions. Word has length 175 [2024-11-14 03:56:22,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:22,903 INFO L471 AbstractCegarLoop]: Abstraction has 4296 states and 6418 transitions. [2024-11-14 03:56:22,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-14 03:56:22,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 6418 transitions. [2024-11-14 03:56:22,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-14 03:56:22,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:22,919 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:22,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:56:22,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:56:22,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash -310667131, now seen corresponding path program 1 times [2024-11-14 03:56:22,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:22,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235246834] [2024-11-14 03:56:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:22,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 03:56:26,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:26,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235246834] [2024-11-14 03:56:26,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235246834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:26,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:26,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:26,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094795181] [2024-11-14 03:56:26,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:26,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:26,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:26,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:26,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:26,395 INFO L87 Difference]: Start difference. First operand 4296 states and 6418 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 03:56:28,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:30,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:39,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:41,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:41,449 INFO L93 Difference]: Finished difference Result 12510 states and 18708 transitions. [2024-11-14 03:56:41,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:41,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 181 [2024-11-14 03:56:41,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:41,532 INFO L225 Difference]: With dead ends: 12510 [2024-11-14 03:56:41,532 INFO L226 Difference]: Without dead ends: 8245 [2024-11-14 03:56:41,564 INFO L431 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 [2024-11-14 03:56:41,564 INFO L432 NwaCegarLoop]: 2898 mSDtfsCounter, 2992 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:41,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2992 Valid, 5747 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 862 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2024-11-14 03:56:41,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2024-11-14 03:56:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8215. [2024-11-14 03:56:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8215 states, 4680 states have (on average 1.307905982905983) internal successors, (6121), 4952 states have internal predecessors, (6121), 3075 states have call successors, (3075), 458 states have call predecessors, (3075), 457 states have return successors, (3095), 2896 states have call predecessors, (3095), 3071 states have call successors, (3095) [2024-11-14 03:56:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 12291 transitions. [2024-11-14 03:56:42,281 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 12291 transitions. Word has length 181 [2024-11-14 03:56:42,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:42,282 INFO L471 AbstractCegarLoop]: Abstraction has 8215 states and 12291 transitions. [2024-11-14 03:56:42,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 03:56:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 12291 transitions. [2024-11-14 03:56:42,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-14 03:56:42,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:42,298 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:56:42,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:56:42,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:56:42,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:42,300 INFO L85 PathProgramCache]: Analyzing trace with hash 454230606, now seen corresponding path program 1 times [2024-11-14 03:56:42,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:56:42,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505929440] [2024-11-14 03:56:42,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:42,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:56:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 03:56:45,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:56:45,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505929440] [2024-11-14 03:56:45,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505929440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:45,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:45,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:56:45,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705322765] [2024-11-14 03:56:45,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:45,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:56:45,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:56:45,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:56:45,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:56:45,930 INFO L87 Difference]: Start difference. First operand 8215 states and 12291 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:56:47,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:50,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:59,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:59,087 INFO L93 Difference]: Finished difference Result 19807 states and 29635 transitions. [2024-11-14 03:56:59,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:56:59,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2024-11-14 03:56:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:59,246 INFO L225 Difference]: With dead ends: 19807 [2024-11-14 03:56:59,247 INFO L226 Difference]: Without dead ends: 11623 [2024-11-14 03:56:59,333 INFO L431 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 [2024-11-14 03:56:59,335 INFO L432 NwaCegarLoop]: 3060 mSDtfsCounter, 2936 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2936 SdHoareTripleChecker+Valid, 5877 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:59,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2936 Valid, 5877 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 922 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2024-11-14 03:56:59,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11623 states. [2024-11-14 03:57:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11623 to 11595. [2024-11-14 03:57:00,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11595 states, 6624 states have (on average 1.3066123188405796) internal successors, (8655), 7020 states have internal predecessors, (8655), 4308 states have call successors, (4308), 663 states have call predecessors, (4308), 660 states have return successors, (4330), 4037 states have call predecessors, (4330), 4304 states have call successors, (4330) [2024-11-14 03:57:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11595 states to 11595 states and 17293 transitions. [2024-11-14 03:57:00,240 INFO L78 Accepts]: Start accepts. Automaton has 11595 states and 17293 transitions. Word has length 186 [2024-11-14 03:57:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:00,243 INFO L471 AbstractCegarLoop]: Abstraction has 11595 states and 17293 transitions. [2024-11-14 03:57:00,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:57:00,243 INFO L276 IsEmpty]: Start isEmpty. Operand 11595 states and 17293 transitions. [2024-11-14 03:57:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-14 03:57:00,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:00,252 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:00,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:57:00,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:57:00,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:00,253 INFO L85 PathProgramCache]: Analyzing trace with hash -832717591, now seen corresponding path program 1 times [2024-11-14 03:57:00,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:00,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653912030] [2024-11-14 03:57:00,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:00,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 03:57:03,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:03,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653912030] [2024-11-14 03:57:03,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653912030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:03,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:03,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:57:03,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065107707] [2024-11-14 03:57:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:03,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:57:03,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:03,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:57:03,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:57:03,191 INFO L87 Difference]: Start difference. First operand 11595 states and 17293 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:57:05,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:07,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:15,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:15,311 INFO L93 Difference]: Finished difference Result 28919 states and 43034 transitions. [2024-11-14 03:57:15,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:57:15,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2024-11-14 03:57:15,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:15,468 INFO L225 Difference]: With dead ends: 28919 [2024-11-14 03:57:15,468 INFO L226 Difference]: Without dead ends: 17355 [2024-11-14 03:57:15,547 INFO L431 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 [2024-11-14 03:57:15,548 INFO L432 NwaCegarLoop]: 2910 mSDtfsCounter, 2705 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:15,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2705 Valid, 5738 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 883 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2024-11-14 03:57:15,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17355 states. [2024-11-14 03:57:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17355 to 17315. [2024-11-14 03:57:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17315 states, 9936 states have (on average 1.3046497584541064) internal successors, (12963), 10556 states have internal predecessors, (12963), 6318 states have call successors, (6318), 1063 states have call predecessors, (6318), 1058 states have return successors, (6427), 5865 states have call predecessors, (6427), 6314 states have call successors, (6427) [2024-11-14 03:57:17,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17315 states to 17315 states and 25708 transitions. [2024-11-14 03:57:17,178 INFO L78 Accepts]: Start accepts. Automaton has 17315 states and 25708 transitions. Word has length 183 [2024-11-14 03:57:17,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:17,178 INFO L471 AbstractCegarLoop]: Abstraction has 17315 states and 25708 transitions. [2024-11-14 03:57:17,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:57:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 17315 states and 25708 transitions. [2024-11-14 03:57:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-14 03:57:17,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:17,186 INFO L215 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:17,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:57:17,187 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:57:17,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1839199574, now seen corresponding path program 1 times [2024-11-14 03:57:17,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:17,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896733613] [2024-11-14 03:57:17,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:20,400 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-14 03:57:20,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896733613] [2024-11-14 03:57:20,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896733613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:20,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:20,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:57:20,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980077689] [2024-11-14 03:57:20,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:20,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:57:20,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:20,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:57:20,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:57:20,403 INFO L87 Difference]: Start difference. First operand 17315 states and 25708 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 03:57:22,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:24,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:32,802 INFO L93 Difference]: Finished difference Result 50889 states and 75533 transitions. [2024-11-14 03:57:32,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:57:32,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 187 [2024-11-14 03:57:32,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:33,072 INFO L225 Difference]: With dead ends: 50889 [2024-11-14 03:57:33,072 INFO L226 Difference]: Without dead ends: 33605 [2024-11-14 03:57:33,174 INFO L431 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 [2024-11-14 03:57:33,176 INFO L432 NwaCegarLoop]: 3064 mSDtfsCounter, 3186 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:33,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5866 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 871 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-14 03:57:33,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33605 states. [2024-11-14 03:57:35,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33605 to 33528. [2024-11-14 03:57:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33528 states, 19246 states have (on average 1.3068170009352593) internal successors, (25151), 20480 states have internal predecessors, (25151), 12202 states have call successors, (12202), 2086 states have call predecessors, (12202), 2077 states have return successors, (12422), 11281 states have call predecessors, (12422), 12198 states have call successors, (12422) [2024-11-14 03:57:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33528 states to 33528 states and 49775 transitions. [2024-11-14 03:57:35,532 INFO L78 Accepts]: Start accepts. Automaton has 33528 states and 49775 transitions. Word has length 187 [2024-11-14 03:57:35,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:35,535 INFO L471 AbstractCegarLoop]: Abstraction has 33528 states and 49775 transitions. [2024-11-14 03:57:35,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 03:57:35,536 INFO L276 IsEmpty]: Start isEmpty. Operand 33528 states and 49775 transitions. [2024-11-14 03:57:35,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-14 03:57:35,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:35,550 INFO L215 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 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] [2024-11-14 03:57:35,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:57:35,550 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:57:35,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:35,551 INFO L85 PathProgramCache]: Analyzing trace with hash 633788609, now seen corresponding path program 1 times [2024-11-14 03:57:35,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:35,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552424938] [2024-11-14 03:57:35,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:35,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:57:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:40,049 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2024-11-14 03:57:40,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:57:40,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552424938] [2024-11-14 03:57:40,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552424938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:40,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:57:40,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:57:40,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288194681] [2024-11-14 03:57:40,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:40,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:57:40,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:40,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:57:40,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:57:40,053 INFO L87 Difference]: Start difference. First operand 33528 states and 49775 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 03:57:42,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:44,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:57:52,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:52,941 INFO L93 Difference]: Finished difference Result 90515 states and 134590 transitions. [2024-11-14 03:57:52,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:57:52,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2024-11-14 03:57:52,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:53,473 INFO L225 Difference]: With dead ends: 90515 [2024-11-14 03:57:53,473 INFO L226 Difference]: Without dead ends: 57018 [2024-11-14 03:57:53,723 INFO L431 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 [2024-11-14 03:57:53,725 INFO L432 NwaCegarLoop]: 3039 mSDtfsCounter, 3216 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3216 SdHoareTripleChecker+Valid, 5894 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:53,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3216 Valid, 5894 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 871 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2024-11-14 03:57:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57018 states. [2024-11-14 03:57:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57018 to 56960. [2024-11-14 03:57:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56960 states, 32640 states have (on average 1.307107843137255) internal successors, (42664), 34727 states have internal predecessors, (42664), 20832 states have call successors, (20832), 3506 states have call predecessors, (20832), 3485 states have return successors, (21264), 19268 states have call predecessors, (21264), 20828 states have call successors, (21264) [2024-11-14 03:57:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56960 states to 56960 states and 84760 transitions. [2024-11-14 03:57:57,476 INFO L78 Accepts]: Start accepts. Automaton has 56960 states and 84760 transitions. Word has length 209 [2024-11-14 03:57:57,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:57,478 INFO L471 AbstractCegarLoop]: Abstraction has 56960 states and 84760 transitions. [2024-11-14 03:57:57,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 03:57:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 56960 states and 84760 transitions. [2024-11-14 03:57:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-14 03:57:57,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:57,490 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:57:57,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:57:57,491 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:57:57,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:57,491 INFO L85 PathProgramCache]: Analyzing trace with hash -396468864, now seen corresponding path program 1 times [2024-11-14 03:57:57,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:57:57,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793011330] [2024-11-14 03:57:57,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:57,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1007 trivial. 0 not checked. [2024-11-14 03:58:02,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:02,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793011330] [2024-11-14 03:58:02,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793011330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:02,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:02,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:02,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995810454] [2024-11-14 03:58:02,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:02,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:02,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:02,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:02,575 INFO L87 Difference]: Start difference. First operand 56960 states and 84760 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-14 03:58:04,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:06,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:08,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:20,632 INFO L93 Difference]: Finished difference Result 56966 states and 84765 transitions. [2024-11-14 03:58:20,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:20,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 219 [2024-11-14 03:58:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:21,167 INFO L225 Difference]: With dead ends: 56966 [2024-11-14 03:58:21,167 INFO L226 Difference]: Without dead ends: 56964 [2024-11-14 03:58:21,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:58:21,236 INFO L432 NwaCegarLoop]: 2856 mSDtfsCounter, 3227 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3228 SdHoareTripleChecker+Valid, 8554 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:21,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3228 Valid, 8554 Invalid, 1291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1288 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2024-11-14 03:58:21,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56964 states. [2024-11-14 03:58:24,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56964 to 56964. [2024-11-14 03:58:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56964 states, 32643 states have (on average 1.307079618907576) internal successors, (42667), 34730 states have internal predecessors, (42667), 20832 states have call successors, (20832), 3507 states have call predecessors, (20832), 3486 states have return successors, (21264), 19268 states have call predecessors, (21264), 20828 states have call successors, (21264) [2024-11-14 03:58:25,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56964 states to 56964 states and 84763 transitions. [2024-11-14 03:58:25,066 INFO L78 Accepts]: Start accepts. Automaton has 56964 states and 84763 transitions. Word has length 219 [2024-11-14 03:58:25,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:25,067 INFO L471 AbstractCegarLoop]: Abstraction has 56964 states and 84763 transitions. [2024-11-14 03:58:25,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-14 03:58:25,067 INFO L276 IsEmpty]: Start isEmpty. Operand 56964 states and 84763 transitions. [2024-11-14 03:58:25,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-14 03:58:25,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:25,078 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:25,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:58:25,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:58:25,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:25,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1225163449, now seen corresponding path program 1 times [2024-11-14 03:58:25,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:25,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296413264] [2024-11-14 03:58:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:25,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2024-11-14 03:58:28,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:28,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296413264] [2024-11-14 03:58:28,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296413264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:28,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:28,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016874810] [2024-11-14 03:58:28,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:28,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:28,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:28,899 INFO L87 Difference]: Start difference. First operand 56964 states and 84763 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-14 03:58:30,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:33,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:35,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:58:47,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:47,230 INFO L93 Difference]: Finished difference Result 56970 states and 84768 transitions. [2024-11-14 03:58:47,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:58:47,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 223 [2024-11-14 03:58:47,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:47,652 INFO L225 Difference]: With dead ends: 56970 [2024-11-14 03:58:47,653 INFO L226 Difference]: Without dead ends: 56968 [2024-11-14 03:58:47,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:58:47,706 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3223 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:47,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2024-11-14 03:58:47,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56968 states. [2024-11-14 03:58:51,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56968 to 56968. [2024-11-14 03:58:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56968 states, 32646 states have (on average 1.307051399865221) internal successors, (42670), 34733 states have internal predecessors, (42670), 20832 states have call successors, (20832), 3508 states have call predecessors, (20832), 3487 states have return successors, (21264), 19268 states have call predecessors, (21264), 20828 states have call successors, (21264) [2024-11-14 03:58:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56968 states to 56968 states and 84766 transitions. [2024-11-14 03:58:52,733 INFO L78 Accepts]: Start accepts. Automaton has 56968 states and 84766 transitions. Word has length 223 [2024-11-14 03:58:52,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:52,734 INFO L471 AbstractCegarLoop]: Abstraction has 56968 states and 84766 transitions. [2024-11-14 03:58:52,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-14 03:58:52,734 INFO L276 IsEmpty]: Start isEmpty. Operand 56968 states and 84766 transitions. [2024-11-14 03:58:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-14 03:58:52,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:52,747 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:52,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:58:52,748 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:58:52,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:52,748 INFO L85 PathProgramCache]: Analyzing trace with hash -819489984, now seen corresponding path program 1 times [2024-11-14 03:58:52,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:52,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712001115] [2024-11-14 03:58:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:52,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1011 trivial. 0 not checked. [2024-11-14 03:58:57,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:57,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712001115] [2024-11-14 03:58:57,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712001115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:57,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:57,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:58:57,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847144051] [2024-11-14 03:58:57,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:57,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:58:57,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:57,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:58:57,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:58:57,556 INFO L87 Difference]: Start difference. First operand 56968 states and 84766 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-14 03:58:59,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:01,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:03,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:16,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:16,818 INFO L93 Difference]: Finished difference Result 56974 states and 84771 transitions. [2024-11-14 03:59:16,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:59:16,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 229 [2024-11-14 03:59:16,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:17,090 INFO L225 Difference]: With dead ends: 56974 [2024-11-14 03:59:17,090 INFO L226 Difference]: Without dead ends: 56972 [2024-11-14 03:59:17,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:59:17,112 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3222 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3223 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:17,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3223 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2024-11-14 03:59:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56972 states. [2024-11-14 03:59:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56972 to 56972. [2024-11-14 03:59:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56972 states, 32649 states have (on average 1.3070231860087598) internal successors, (42673), 34736 states have internal predecessors, (42673), 20832 states have call successors, (20832), 3509 states have call predecessors, (20832), 3488 states have return successors, (21264), 19268 states have call predecessors, (21264), 20828 states have call successors, (21264) [2024-11-14 03:59:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56972 states to 56972 states and 84769 transitions. [2024-11-14 03:59:21,135 INFO L78 Accepts]: Start accepts. Automaton has 56972 states and 84769 transitions. Word has length 229 [2024-11-14 03:59:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:21,136 INFO L471 AbstractCegarLoop]: Abstraction has 56972 states and 84769 transitions. [2024-11-14 03:59:21,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-14 03:59:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 56972 states and 84769 transitions. [2024-11-14 03:59:21,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-14 03:59:21,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:21,148 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:59:21,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:59:21,148 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:59:21,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:21,149 INFO L85 PathProgramCache]: Analyzing trace with hash -660095417, now seen corresponding path program 1 times [2024-11-14 03:59:21,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:21,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145324711] [2024-11-14 03:59:21,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:21,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2024-11-14 03:59:24,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:24,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145324711] [2024-11-14 03:59:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145324711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:59:24,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:59:24,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:59:24,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811565751] [2024-11-14 03:59:24,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:59:24,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:59:24,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:24,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:59:24,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:59:24,995 INFO L87 Difference]: Start difference. First operand 56972 states and 84769 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-14 03:59:27,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:29,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:31,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:44,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:44,685 INFO L93 Difference]: Finished difference Result 56978 states and 84774 transitions. [2024-11-14 03:59:44,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:59:44,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 233 [2024-11-14 03:59:44,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:45,105 INFO L225 Difference]: With dead ends: 56978 [2024-11-14 03:59:45,105 INFO L226 Difference]: Without dead ends: 56976 [2024-11-14 03:59:45,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:59:45,142 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3221 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3222 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:45,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2024-11-14 03:59:45,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56976 states. [2024-11-14 03:59:48,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56976 to 56976. [2024-11-14 03:59:48,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56976 states, 32652 states have (on average 1.3069949773367635) internal successors, (42676), 34739 states have internal predecessors, (42676), 20832 states have call successors, (20832), 3510 states have call predecessors, (20832), 3489 states have return successors, (21264), 19268 states have call predecessors, (21264), 20828 states have call successors, (21264) [2024-11-14 03:59:49,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56976 states to 56976 states and 84772 transitions. [2024-11-14 03:59:49,419 INFO L78 Accepts]: Start accepts. Automaton has 56976 states and 84772 transitions. Word has length 233 [2024-11-14 03:59:49,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:49,419 INFO L471 AbstractCegarLoop]: Abstraction has 56976 states and 84772 transitions. [2024-11-14 03:59:49,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-14 03:59:49,420 INFO L276 IsEmpty]: Start isEmpty. Operand 56976 states and 84772 transitions. [2024-11-14 03:59:49,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-14 03:59:49,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:49,434 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:59:49,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:59:49,434 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:59:49,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:49,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2141535793, now seen corresponding path program 1 times [2024-11-14 03:59:49,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:59:49,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505764624] [2024-11-14 03:59:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:49,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:59:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-11-14 03:59:53,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:59:53,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505764624] [2024-11-14 03:59:53,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505764624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:59:53,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:59:53,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:59:53,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563646461] [2024-11-14 03:59:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:59:53,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:59:53,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:59:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:59:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:59:53,510 INFO L87 Difference]: Start difference. First operand 56976 states and 84772 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-14 03:59:55,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:57,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:00:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:11,714 INFO L93 Difference]: Finished difference Result 139386 states and 207514 transitions. [2024-11-14 04:00:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:00:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 235 [2024-11-14 04:00:11,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:12,368 INFO L225 Difference]: With dead ends: 139386 [2024-11-14 04:00:12,369 INFO L226 Difference]: Without dead ends: 83352 [2024-11-14 04:00:12,939 INFO L431 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 [2024-11-14 04:00:12,943 INFO L432 NwaCegarLoop]: 4879 mSDtfsCounter, 2942 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2942 SdHoareTripleChecker+Valid, 7684 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:12,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2942 Valid, 7684 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1199 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-14 04:00:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83352 states. [2024-11-14 04:00:19,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83352 to 83280. [2024-11-14 04:00:19,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83280 states, 47764 states have (on average 1.3068419730340843) internal successors, (62420), 50851 states have internal predecessors, (62420), 30408 states have call successors, (30408), 5138 states have call predecessors, (30408), 5105 states have return successors, (30998), 28080 states have call predecessors, (30998), 30404 states have call successors, (30998) [2024-11-14 04:00:20,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83280 states to 83280 states and 123826 transitions. [2024-11-14 04:00:20,158 INFO L78 Accepts]: Start accepts. Automaton has 83280 states and 123826 transitions. Word has length 235 [2024-11-14 04:00:20,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:20,158 INFO L471 AbstractCegarLoop]: Abstraction has 83280 states and 123826 transitions. [2024-11-14 04:00:20,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-11-14 04:00:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 83280 states and 123826 transitions. [2024-11-14 04:00:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-14 04:00:20,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:20,168 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:20,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 04:00:20,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 04:00:20,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:20,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1247131392, now seen corresponding path program 1 times [2024-11-14 04:00:20,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:20,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837911358] [2024-11-14 04:00:20,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:20,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1031 trivial. 0 not checked. [2024-11-14 04:00:23,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:23,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837911358] [2024-11-14 04:00:23,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837911358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:23,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:23,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:00:23,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435181352] [2024-11-14 04:00:23,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:23,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:00:23,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:23,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:00:23,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:00:23,709 INFO L87 Difference]: Start difference. First operand 83280 states and 123826 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-14 04:00:25,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:00:27,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:00:29,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:00:44,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:44,695 INFO L93 Difference]: Finished difference Result 83286 states and 123831 transitions. [2024-11-14 04:00:44,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:00:44,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 239 [2024-11-14 04:00:44,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:45,350 INFO L225 Difference]: With dead ends: 83286 [2024-11-14 04:00:45,350 INFO L226 Difference]: Without dead ends: 83284 [2024-11-14 04:00:45,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:00:45,389 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3220 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:45,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2024-11-14 04:00:45,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83284 states. [2024-11-14 04:00:52,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83284 to 83284. [2024-11-14 04:00:52,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83284 states, 47767 states have (on average 1.3068227018653045) internal successors, (62423), 50854 states have internal predecessors, (62423), 30408 states have call successors, (30408), 5139 states have call predecessors, (30408), 5106 states have return successors, (30998), 28080 states have call predecessors, (30998), 30404 states have call successors, (30998) [2024-11-14 04:00:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83284 states to 83284 states and 123829 transitions. [2024-11-14 04:00:53,128 INFO L78 Accepts]: Start accepts. Automaton has 83284 states and 123829 transitions. Word has length 239 [2024-11-14 04:00:53,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:53,129 INFO L471 AbstractCegarLoop]: Abstraction has 83284 states and 123829 transitions. [2024-11-14 04:00:53,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-14 04:00:53,130 INFO L276 IsEmpty]: Start isEmpty. Operand 83284 states and 123829 transitions. [2024-11-14 04:00:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-14 04:00:53,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:53,164 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 6, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:00:53,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 04:00:53,164 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 04:00:53,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:53,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1568501040, now seen corresponding path program 1 times [2024-11-14 04:00:53,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:00:53,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82924962] [2024-11-14 04:00:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:53,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:00:56,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2024-11-14 04:00:56,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:00:56,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82924962] [2024-11-14 04:00:56,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82924962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:56,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:56,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:00:56,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969763709] [2024-11-14 04:00:56,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:56,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:00:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:00:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:00:56,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:00:56,877 INFO L87 Difference]: Start difference. First operand 83284 states and 123829 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 04:00:58,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:01,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:03,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:25,257 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 [] [2024-11-14 04:01:28,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:28,768 INFO L93 Difference]: Finished difference Result 133746 states and 197458 transitions. [2024-11-14 04:01:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:01:28,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 244 [2024-11-14 04:01:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:30,055 INFO L225 Difference]: With dead ends: 133746 [2024-11-14 04:01:30,055 INFO L226 Difference]: Without dead ends: 133744 [2024-11-14 04:01:30,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:01:30,122 INFO L432 NwaCegarLoop]: 3459 mSDtfsCounter, 2873 mSDsluCounter, 8770 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 12229 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:30,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 12229 Invalid, 1805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1800 Invalid, 4 Unknown, 0 Unchecked, 23.2s Time] [2024-11-14 04:01:30,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133744 states. [2024-11-14 04:01:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133744 to 133644. [2024-11-14 04:01:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133644 states, 74978 states have (on average 1.2874443169996532) internal successors, (96530), 80565 states have internal predecessors, (96530), 49628 states have call successors, (49628), 9200 states have call predecessors, (49628), 9035 states have return successors, (51200), 45196 states have call predecessors, (51200), 49624 states have call successors, (51200) [2024-11-14 04:01:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133644 states to 133644 states and 197358 transitions. [2024-11-14 04:01:43,849 INFO L78 Accepts]: Start accepts. Automaton has 133644 states and 197358 transitions. Word has length 244 [2024-11-14 04:01:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:43,850 INFO L471 AbstractCegarLoop]: Abstraction has 133644 states and 197358 transitions. [2024-11-14 04:01:43,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 04:01:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 133644 states and 197358 transitions. [2024-11-14 04:01:43,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-14 04:01:43,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:43,884 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:01:43,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 04:01:43,885 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 04:01:43,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:43,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1474966281, now seen corresponding path program 1 times [2024-11-14 04:01:43,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:43,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705344075] [2024-11-14 04:01:43,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:43,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2024-11-14 04:01:49,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:49,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705344075] [2024-11-14 04:01:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705344075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:49,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:01:49,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:01:49,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605150761] [2024-11-14 04:01:49,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:49,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:01:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:49,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:01:49,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:01:49,980 INFO L87 Difference]: Start difference. First operand 133644 states and 197358 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 04:01:52,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:54,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:01:56,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:17,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:17,054 INFO L93 Difference]: Finished difference Result 133650 states and 197363 transitions. [2024-11-14 04:02:17,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:02:17,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 248 [2024-11-14 04:02:17,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:18,085 INFO L225 Difference]: With dead ends: 133650 [2024-11-14 04:02:18,085 INFO L226 Difference]: Without dead ends: 133648 [2024-11-14 04:02:18,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:02:18,159 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3218 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3219 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:18,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3219 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2024-11-14 04:02:18,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133648 states. [2024-11-14 04:02:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133648 to 133648. [2024-11-14 04:02:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133648 states, 74981 states have (on average 1.287432816313466) internal successors, (96533), 80568 states have internal predecessors, (96533), 49628 states have call successors, (49628), 9201 states have call predecessors, (49628), 9036 states have return successors, (51200), 45196 states have call predecessors, (51200), 49624 states have call successors, (51200) [2024-11-14 04:02:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133648 states to 133648 states and 197361 transitions. [2024-11-14 04:02:31,028 INFO L78 Accepts]: Start accepts. Automaton has 133648 states and 197361 transitions. Word has length 248 [2024-11-14 04:02:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:31,028 INFO L471 AbstractCegarLoop]: Abstraction has 133648 states and 197361 transitions. [2024-11-14 04:02:31,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 04:02:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 133648 states and 197361 transitions. [2024-11-14 04:02:31,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-14 04:02:31,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:31,042 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 8, 7, 7, 4, 4, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:02:31,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 04:02:31,042 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 04:02:31,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:31,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1112111555, now seen corresponding path program 1 times [2024-11-14 04:02:31,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:31,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536291125] [2024-11-14 04:02:31,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:31,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2024-11-14 04:02:35,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536291125] [2024-11-14 04:02:35,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536291125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:02:35,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:02:35,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:02:35,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367128041] [2024-11-14 04:02:35,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:02:35,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:02:35,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:35,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:02:35,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:02:35,017 INFO L87 Difference]: Start difference. First operand 133648 states and 197361 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 04:02:37,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:39,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:02:41,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []