./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/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_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:27:57,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:27:57,362 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:27:57,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:27:57,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:27:57,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:27:57,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:27:57,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:27:57,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:27:57,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:27:57,420 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:27:57,421 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:27:57,421 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:27:57,421 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:27:57,422 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:27:57,422 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:27:57,422 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:27:57,423 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:27:57,423 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:27:57,424 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:27:57,424 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:27:57,425 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:27:57,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:27:57,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:27:57,426 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:27:57,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:27:57,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:27:57,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:27:57,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:27:57,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:27:57,432 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:27:57,432 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:27:57,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:27:57,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:27:57,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:27:57,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:27:57,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:27:57,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:27:57,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:27:57,435 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:27:57,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:27:57,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:27:57,436 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:27:57,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:27:57,437 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2024-11-09 07:27:57,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:27:57,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:27:57,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:27:57,752 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:27:57,752 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:27:57,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/../../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++" [2024-11-09 07:27:59,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:28:00,587 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:28:00,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2024-11-09 07:28:00,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/data/e8470d6ff/141ce1ea4bfa4867a832c5e4ab75900d/FLAG2d5c607aa [2024-11-09 07:28:00,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/data/e8470d6ff/141ce1ea4bfa4867a832c5e4ab75900d [2024-11-09 07:28:00,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:28:00,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:28:00,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:28:00,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:28:00,698 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:28:00,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:28:00" (1/1) ... [2024-11-09 07:28:00,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343f16b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:00, skipping insertion in model container [2024-11-09 07:28:00,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:28:00" (1/1) ... [2024-11-09 07:28:00,985 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:28:04,639 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:04,644 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:04,645 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:04,646 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:04,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:28:04,735 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:28:04,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5400] [2024-11-09 07:28:04,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5408] [2024-11-09 07:28:05,440 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] [2024-11-09 07:28:05,440 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] [2024-11-09 07:28:05,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7358] [2024-11-09 07:28:05,441 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7371] [2024-11-09 07:28:05,715 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:05,716 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:05,716 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:05,717 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_422c2a12-5cf4-4d63-adf6-262a3d65310f/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] [2024-11-09 07:28:05,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:28:06,036 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:28:06,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06 WrapperNode [2024-11-09 07:28:06,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:28:06,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:28:06,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:28:06,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:28:06,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,139 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,314 INFO L138 Inliner]: procedures = 494, calls = 2673, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5731 [2024-11-09 07:28:06,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:28:06,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:28:06,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:28:06,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:28:06,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,612 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:28:06,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:28:06,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:28:06,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:28:06,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (1/1) ... [2024-11-09 07:28:06,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:28:06,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:06,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:28:06,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_422c2a12-5cf4-4d63-adf6-262a3d65310f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:28:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2024-11-09 07:28:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2024-11-09 07:28:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 07:28:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 07:28:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2024-11-09 07:28:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2024-11-09 07:28:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:28:06,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:28:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2024-11-09 07:28:06,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2024-11-09 07:28:06,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2024-11-09 07:28:06,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2024-11-09 07:28:06,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 07:28:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 07:28:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:28:06,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:28:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2024-11-09 07:28:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2024-11-09 07:28:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2024-11-09 07:28:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2024-11-09 07:28:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 07:28:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 07:28:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2024-11-09 07:28:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2024-11-09 07:28:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2024-11-09 07:28:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2024-11-09 07:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2024-11-09 07:28:06,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2024-11-09 07:28:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2024-11-09 07:28:06,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2024-11-09 07:28:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-09 07:28:06,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-09 07:28:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2024-11-09 07:28:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2024-11-09 07:28:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2024-11-09 07:28:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2024-11-09 07:28:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2024-11-09 07:28:06,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2024-11-09 07:28:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2024-11-09 07:28:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2024-11-09 07:28:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2024-11-09 07:28:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2024-11-09 07:28:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 07:28:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 07:28:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 07:28:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 07:28:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2024-11-09 07:28:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2024-11-09 07:28:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2024-11-09 07:28:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2024-11-09 07:28:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:28:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 07:28:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 07:28:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 07:28:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 07:28:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 07:28:06,804 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-09 07:28:06,804 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-09 07:28:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2024-11-09 07:28:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2024-11-09 07:28:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2024-11-09 07:28:06,805 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2024-11-09 07:28:06,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:28:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 07:28:06,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 07:28:06,807 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2024-11-09 07:28:06,808 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2024-11-09 07:28:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:28:06,808 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2024-11-09 07:28:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2024-11-09 07:28:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-09 07:28:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-09 07:28:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2024-11-09 07:28:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2024-11-09 07:28:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 07:28:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 07:28:06,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 07:28:06,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 07:28:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2024-11-09 07:28:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2024-11-09 07:28:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2024-11-09 07:28:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2024-11-09 07:28:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-09 07:28:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-09 07:28:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-09 07:28:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-09 07:28:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2024-11-09 07:28:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2024-11-09 07:28:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2024-11-09 07:28:06,810 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2024-11-09 07:28:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 07:28:06,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 07:28:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2024-11-09 07:28:06,811 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2024-11-09 07:28:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2024-11-09 07:28:06,812 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2024-11-09 07:28:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:28:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 07:28:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 07:28:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-09 07:28:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-09 07:28:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:28:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:28:06,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:28:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 07:28:06,816 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 07:28:06,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2024-11-09 07:28:06,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2024-11-09 07:28:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:28:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2024-11-09 07:28:06,817 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2024-11-09 07:28:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:28:06,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:28:06,817 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-09 07:28:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-09 07:28:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:28:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:28:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2024-11-09 07:28:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2024-11-09 07:28:06,818 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-09 07:28:06,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-09 07:28:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2024-11-09 07:28:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2024-11-09 07:28:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-09 07:28:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-09 07:28:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 07:28:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 07:28:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2024-11-09 07:28:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2024-11-09 07:28:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2024-11-09 07:28:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2024-11-09 07:28:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2024-11-09 07:28:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2024-11-09 07:28:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2024-11-09 07:28:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2024-11-09 07:28:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2024-11-09 07:28:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2024-11-09 07:28:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:28:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:28:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2024-11-09 07:28:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2024-11-09 07:28:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:28:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2024-11-09 07:28:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 07:28:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-09 07:28:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2024-11-09 07:28:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2024-11-09 07:28:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2024-11-09 07:28:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2024-11-09 07:28:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2024-11-09 07:28:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2024-11-09 07:28:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:28:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:28:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2024-11-09 07:28:06,824 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2024-11-09 07:28:06,824 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2024-11-09 07:28:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2024-11-09 07:28:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 07:28:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 07:28:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2024-11-09 07:28:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2024-11-09 07:28:06,825 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2024-11-09 07:28:06,825 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2024-11-09 07:28:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2024-11-09 07:28:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2024-11-09 07:28:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 07:28:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 07:28:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:28:06,826 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2024-11-09 07:28:06,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2024-11-09 07:28:06,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2024-11-09 07:28:06,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2024-11-09 07:28:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:28:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 07:28:06,828 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 07:28:06,828 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2024-11-09 07:28:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2024-11-09 07:28:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-09 07:28:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-09 07:28:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2024-11-09 07:28:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2024-11-09 07:28:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 07:28:06,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 07:28:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2024-11-09 07:28:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2024-11-09 07:28:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-09 07:28:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-09 07:28:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2024-11-09 07:28:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2024-11-09 07:28:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2024-11-09 07:28:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2024-11-09 07:28:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 07:28:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 07:28:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2024-11-09 07:28:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2024-11-09 07:28:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2024-11-09 07:28:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2024-11-09 07:28:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2024-11-09 07:28:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2024-11-09 07:28:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 07:28:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 07:28:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 07:28:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 07:28:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 07:28:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 07:28:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2024-11-09 07:28:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2024-11-09 07:28:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2024-11-09 07:28:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2024-11-09 07:28:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:28:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:28:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2024-11-09 07:28:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2024-11-09 07:28:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:28:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2024-11-09 07:28:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2024-11-09 07:28:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:28:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:28:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2024-11-09 07:28:06,835 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2024-11-09 07:28:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2024-11-09 07:28:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2024-11-09 07:28:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2024-11-09 07:28:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2024-11-09 07:28:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2024-11-09 07:28:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2024-11-09 07:28:06,836 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 07:28:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 07:28:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2024-11-09 07:28:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2024-11-09 07:28:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2024-11-09 07:28:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2024-11-09 07:28:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 07:28:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 07:28:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2024-11-09 07:28:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2024-11-09 07:28:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2024-11-09 07:28:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2024-11-09 07:28:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2024-11-09 07:28:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2024-11-09 07:28:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:28:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-11-09 07:28:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-11-09 07:28:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2024-11-09 07:28:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2024-11-09 07:28:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 07:28:06,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 07:28:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2024-11-09 07:28:06,839 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2024-11-09 07:28:07,977 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:28:07,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:28:08,505 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:28:10,728 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; [2024-11-09 07:28:10,728 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 [2024-11-09 07:28:10,729 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; [2024-11-09 07:28:18,517 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 07:28:20,647 INFO L? ?]: Removed 2469 outVars from TransFormulas that were not future-live. [2024-11-09 07:28:20,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:28:24,164 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:28:24,165 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:28:24,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:28:24 BoogieIcfgContainer [2024-11-09 07:28:24,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:28:24,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:28:24,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:28:24,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:28:24,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:28:00" (1/3) ... [2024-11-09 07:28:24,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775b07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:28:24, skipping insertion in model container [2024-11-09 07:28:24,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:28:06" (2/3) ... [2024-11-09 07:28:24,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775b07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:28:24, skipping insertion in model container [2024-11-09 07:28:24,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:28:24" (3/3) ... [2024-11-09 07:28:24,180 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2024-11-09 07:28:24,204 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:28:24,204 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 07:28:24,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:28:24,368 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;@34503e08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:28:24,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 07:28:24,405 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) [2024-11-09 07:28:24,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-09 07:28:24,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:24,462 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] [2024-11-09 07:28:24,463 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)] === [2024-11-09 07:28:24,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:24,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1381357508, now seen corresponding path program 1 times [2024-11-09 07:28:24,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:24,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867699325] [2024-11-09 07:28:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:24,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2024-11-09 07:28:29,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:29,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867699325] [2024-11-09 07:28:29,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867699325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:28:29,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:28:29,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:28:29,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134238947] [2024-11-09 07:28:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:28:29,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:28:29,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:28:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:28:29,616 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) [2024-11-09 07:28:31,701 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 [] [2024-11-09 07:28:33,860 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 [] [2024-11-09 07:28:42,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:42,660 INFO L93 Difference]: Finished difference Result 6492 states and 9840 transitions. [2024-11-09 07:28:42,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:28:42,664 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 [2024-11-09 07:28:42,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:42,757 INFO L225 Difference]: With dead ends: 6492 [2024-11-09 07:28:42,757 INFO L226 Difference]: Without dead ends: 4300 [2024-11-09 07:28:42,790 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 [2024-11-09 07:28:42,796 INFO L432 NwaCegarLoop]: 2887 mSDtfsCounter, 3168 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s 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, 12.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:42,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3168 Valid, 5728 Invalid, 879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 868 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2024-11-09 07:28:42,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2024-11-09 07:28:43,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 4296. [2024-11-09 07:28:43,236 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) [2024-11-09 07:28:43,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 6418 transitions. [2024-11-09 07:28:43,299 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 6418 transitions. Word has length 175 [2024-11-09 07:28:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:43,303 INFO L471 AbstractCegarLoop]: Abstraction has 4296 states and 6418 transitions. [2024-11-09 07:28:43,303 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) [2024-11-09 07:28:43,304 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 6418 transitions. [2024-11-09 07:28:43,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-09 07:28:43,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:43,318 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] [2024-11-09 07:28:43,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:28:43,318 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)] === [2024-11-09 07:28:43,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:43,319 INFO L85 PathProgramCache]: Analyzing trace with hash -310667131, now seen corresponding path program 1 times [2024-11-09 07:28:43,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:43,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343698921] [2024-11-09 07:28:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:43,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-09 07:28:47,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:47,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343698921] [2024-11-09 07:28:47,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343698921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:28:47,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:28:47,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:28:47,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701178781] [2024-11-09 07:28:47,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:28:47,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:28:47,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:28:47,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:28:47,930 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) [2024-11-09 07:28:49,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:28:52,144 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 [] [2024-11-09 07:29:01,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:01,340 INFO L93 Difference]: Finished difference Result 12510 states and 18708 transitions. [2024-11-09 07:29:01,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:29:01,341 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 [2024-11-09 07:29:01,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:01,433 INFO L225 Difference]: With dead ends: 12510 [2024-11-09 07:29:01,433 INFO L226 Difference]: Without dead ends: 8245 [2024-11-09 07:29:01,470 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 [2024-11-09 07:29:01,471 INFO L432 NwaCegarLoop]: 2898 mSDtfsCounter, 2992 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:01,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2992 Valid, 5747 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 863 Invalid, 2 Unknown, 0 Unchecked, 12.8s Time] [2024-11-09 07:29:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2024-11-09 07:29:01,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8215. [2024-11-09 07:29:01,999 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) [2024-11-09 07:29:02,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 12291 transitions. [2024-11-09 07:29:02,074 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 12291 transitions. Word has length 181 [2024-11-09 07:29:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:02,076 INFO L471 AbstractCegarLoop]: Abstraction has 8215 states and 12291 transitions. [2024-11-09 07:29:02,077 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) [2024-11-09 07:29:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 12291 transitions. [2024-11-09 07:29:02,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 07:29:02,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:02,089 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] [2024-11-09 07:29:02,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:29:02,090 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)] === [2024-11-09 07:29:02,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:02,091 INFO L85 PathProgramCache]: Analyzing trace with hash 454230606, now seen corresponding path program 1 times [2024-11-09 07:29:02,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:02,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919200484] [2024-11-09 07:29:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:02,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-09 07:29:05,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:05,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919200484] [2024-11-09 07:29:05,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919200484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:05,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:29:05,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:29:05,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701321443] [2024-11-09 07:29:05,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:05,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:29:05,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:05,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:29:05,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:29:05,664 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) [2024-11-09 07:29:07,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:09,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:19,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:19,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:19,791 INFO L93 Difference]: Finished difference Result 19807 states and 29635 transitions. [2024-11-09 07:29:19,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:29:19,792 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 [2024-11-09 07:29:19,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:19,945 INFO L225 Difference]: With dead ends: 19807 [2024-11-09 07:29:19,946 INFO L226 Difference]: Without dead ends: 11623 [2024-11-09 07:29:20,033 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 [2024-11-09 07:29:20,034 INFO L432 NwaCegarLoop]: 3060 mSDtfsCounter, 2936 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s 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, 13.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:20,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2936 Valid, 5877 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 922 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2024-11-09 07:29:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11623 states. [2024-11-09 07:29:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11623 to 11595. [2024-11-09 07:29:20,925 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) [2024-11-09 07:29:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11595 states to 11595 states and 17293 transitions. [2024-11-09 07:29:21,023 INFO L78 Accepts]: Start accepts. Automaton has 11595 states and 17293 transitions. Word has length 186 [2024-11-09 07:29:21,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:21,024 INFO L471 AbstractCegarLoop]: Abstraction has 11595 states and 17293 transitions. [2024-11-09 07:29:21,024 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) [2024-11-09 07:29:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 11595 states and 17293 transitions. [2024-11-09 07:29:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-09 07:29:21,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:21,030 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] [2024-11-09 07:29:21,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:29:21,031 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)] === [2024-11-09 07:29:21,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:21,032 INFO L85 PathProgramCache]: Analyzing trace with hash -832717591, now seen corresponding path program 1 times [2024-11-09 07:29:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:21,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392175259] [2024-11-09 07:29:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:24,339 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-09 07:29:24,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:24,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392175259] [2024-11-09 07:29:24,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392175259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:24,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:29:24,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:29:24,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815998786] [2024-11-09 07:29:24,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:24,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:29:24,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:24,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:29:24,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:29:24,343 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) [2024-11-09 07:29:26,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:28,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:36,704 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 [] [2024-11-09 07:29:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:37,912 INFO L93 Difference]: Finished difference Result 28919 states and 43034 transitions. [2024-11-09 07:29:37,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:29:37,912 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 [2024-11-09 07:29:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:38,068 INFO L225 Difference]: With dead ends: 28919 [2024-11-09 07:29:38,068 INFO L226 Difference]: Without dead ends: 17355 [2024-11-09 07:29:38,145 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 [2024-11-09 07:29:38,146 INFO L432 NwaCegarLoop]: 2910 mSDtfsCounter, 2705 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 5738 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:38,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2705 Valid, 5738 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 882 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2024-11-09 07:29:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17355 states. [2024-11-09 07:29:39,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17355 to 17315. [2024-11-09 07:29:39,562 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) [2024-11-09 07:29:39,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17315 states to 17315 states and 25708 transitions. [2024-11-09 07:29:39,693 INFO L78 Accepts]: Start accepts. Automaton has 17315 states and 25708 transitions. Word has length 183 [2024-11-09 07:29:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:39,694 INFO L471 AbstractCegarLoop]: Abstraction has 17315 states and 25708 transitions. [2024-11-09 07:29:39,695 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) [2024-11-09 07:29:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 17315 states and 25708 transitions. [2024-11-09 07:29:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-09 07:29:39,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:39,700 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] [2024-11-09 07:29:39,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:29:39,701 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)] === [2024-11-09 07:29:39,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:39,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1839199574, now seen corresponding path program 1 times [2024-11-09 07:29:39,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:39,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702794473] [2024-11-09 07:29:39,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-09 07:29:43,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:43,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702794473] [2024-11-09 07:29:43,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702794473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:43,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:29:43,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:29:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857090206] [2024-11-09 07:29:43,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:43,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:29:43,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:43,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:29:43,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:29:43,034 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) [2024-11-09 07:29:45,087 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 [] [2024-11-09 07:29:47,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:56,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:29:57,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:57,873 INFO L93 Difference]: Finished difference Result 50889 states and 75533 transitions. [2024-11-09 07:29:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:29:57,874 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 [2024-11-09 07:29:57,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:58,156 INFO L225 Difference]: With dead ends: 50889 [2024-11-09 07:29:58,156 INFO L226 Difference]: Without dead ends: 33605 [2024-11-09 07:29:58,274 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 [2024-11-09 07:29:58,276 INFO L432 NwaCegarLoop]: 3064 mSDtfsCounter, 3186 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:58,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 5866 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 870 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2024-11-09 07:29:58,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33605 states. [2024-11-09 07:30:00,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33605 to 33528. [2024-11-09 07:30:00,619 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) [2024-11-09 07:30:00,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33528 states to 33528 states and 49775 transitions. [2024-11-09 07:30:00,902 INFO L78 Accepts]: Start accepts. Automaton has 33528 states and 49775 transitions. Word has length 187 [2024-11-09 07:30:00,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:00,903 INFO L471 AbstractCegarLoop]: Abstraction has 33528 states and 49775 transitions. [2024-11-09 07:30:00,904 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) [2024-11-09 07:30:00,904 INFO L276 IsEmpty]: Start isEmpty. Operand 33528 states and 49775 transitions. [2024-11-09 07:30:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-09 07:30:00,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:00,918 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] [2024-11-09 07:30:00,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:30:00,919 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)] === [2024-11-09 07:30:00,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:00,921 INFO L85 PathProgramCache]: Analyzing trace with hash 633788609, now seen corresponding path program 1 times [2024-11-09 07:30:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:30:00,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595902043] [2024-11-09 07:30:00,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:00,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:30:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:04,939 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2024-11-09 07:30:04,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:04,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595902043] [2024-11-09 07:30:04,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595902043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:30:04,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:30:04,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:30:04,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88109348] [2024-11-09 07:30:04,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:04,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:30:04,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:04,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:30:04,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:30:04,944 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) [2024-11-09 07:30:07,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:09,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:19,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:19,171 INFO L93 Difference]: Finished difference Result 90515 states and 134590 transitions. [2024-11-09 07:30:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:30:19,173 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 [2024-11-09 07:30:19,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:19,648 INFO L225 Difference]: With dead ends: 90515 [2024-11-09 07:30:19,648 INFO L226 Difference]: Without dead ends: 57018 [2024-11-09 07:30:20,074 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 [2024-11-09 07:30:20,075 INFO L432 NwaCegarLoop]: 3039 mSDtfsCounter, 3216 mSDsluCounter, 2855 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s 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, 12.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:20,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3216 Valid, 5894 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 871 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2024-11-09 07:30:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57018 states. [2024-11-09 07:30:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57018 to 56960. [2024-11-09 07:30:24,092 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) [2024-11-09 07:30:24,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56960 states to 56960 states and 84760 transitions. [2024-11-09 07:30:25,051 INFO L78 Accepts]: Start accepts. Automaton has 56960 states and 84760 transitions. Word has length 209 [2024-11-09 07:30:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:25,052 INFO L471 AbstractCegarLoop]: Abstraction has 56960 states and 84760 transitions. [2024-11-09 07:30:25,052 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) [2024-11-09 07:30:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 56960 states and 84760 transitions. [2024-11-09 07:30:25,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-09 07:30:25,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:25,065 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 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] [2024-11-09 07:30:25,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:30:25,066 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)] === [2024-11-09 07:30:25,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:25,066 INFO L85 PathProgramCache]: Analyzing trace with hash 179865481, now seen corresponding path program 1 times [2024-11-09 07:30:25,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:30:25,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993297071] [2024-11-09 07:30:25,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:25,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:30:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2024-11-09 07:30:29,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:29,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993297071] [2024-11-09 07:30:29,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993297071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:30:29,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:30:29,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:30:29,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487051110] [2024-11-09 07:30:29,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:29,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:30:29,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:29,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:30:29,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:30:29,485 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) [2024-11-09 07:30:31,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:33,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:35,875 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 [] [2024-11-09 07:30:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:48,321 INFO L93 Difference]: Finished difference Result 56966 states and 84765 transitions. [2024-11-09 07:30:48,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:30:48,323 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 218 [2024-11-09 07:30:48,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:48,733 INFO L225 Difference]: With dead ends: 56966 [2024-11-09 07:30:48,734 INFO L226 Difference]: Without dead ends: 56964 [2024-11-09 07:30:48,773 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 [2024-11-09 07:30:48,774 INFO L432 NwaCegarLoop]: 2856 mSDtfsCounter, 3227 mSDsluCounter, 5698 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s 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, 16.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:48,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3228 Valid, 8554 Invalid, 1291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1288 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2024-11-09 07:30:48,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56964 states. [2024-11-09 07:30:51,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56964 to 56964. [2024-11-09 07:30:51,749 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) [2024-11-09 07:30:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56964 states to 56964 states and 84763 transitions. [2024-11-09 07:30:52,600 INFO L78 Accepts]: Start accepts. Automaton has 56964 states and 84763 transitions. Word has length 218 [2024-11-09 07:30:52,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:52,601 INFO L471 AbstractCegarLoop]: Abstraction has 56964 states and 84763 transitions. [2024-11-09 07:30:52,601 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) [2024-11-09 07:30:52,602 INFO L276 IsEmpty]: Start isEmpty. Operand 56964 states and 84763 transitions. [2024-11-09 07:30:52,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-09 07:30:52,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:52,618 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] [2024-11-09 07:30:52,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:30:52,619 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)] === [2024-11-09 07:30:52,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:52,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1225163449, now seen corresponding path program 1 times [2024-11-09 07:30:52,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:30:52,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575798899] [2024-11-09 07:30:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:52,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:30:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:57,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1008 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1006 trivial. 0 not checked. [2024-11-09 07:30:57,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:57,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575798899] [2024-11-09 07:30:57,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575798899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:30:57,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:30:57,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:30:57,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126206338] [2024-11-09 07:30:57,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:57,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:30:57,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:57,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:30:57,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:30:57,350 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) [2024-11-09 07:30:59,405 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 [] [2024-11-09 07:31:01,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:03,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:14,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:31:16,500 INFO L93 Difference]: Finished difference Result 56970 states and 84768 transitions. [2024-11-09 07:31:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:31:16,501 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 [2024-11-09 07:31:16,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:31:17,089 INFO L225 Difference]: With dead ends: 56970 [2024-11-09 07:31:17,090 INFO L226 Difference]: Without dead ends: 56968 [2024-11-09 07:31:17,126 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 [2024-11-09 07:31:17,127 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3223 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s 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, 16.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:31:17,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2024-11-09 07:31:17,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56968 states. [2024-11-09 07:31:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56968 to 56968. [2024-11-09 07:31:20,163 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) [2024-11-09 07:31:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56968 states to 56968 states and 84766 transitions. [2024-11-09 07:31:20,652 INFO L78 Accepts]: Start accepts. Automaton has 56968 states and 84766 transitions. Word has length 223 [2024-11-09 07:31:20,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:31:20,653 INFO L471 AbstractCegarLoop]: Abstraction has 56968 states and 84766 transitions. [2024-11-09 07:31:20,653 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) [2024-11-09 07:31:20,653 INFO L276 IsEmpty]: Start isEmpty. Operand 56968 states and 84766 transitions. [2024-11-09 07:31:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-09 07:31:20,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:31:20,672 INFO L215 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 3, 2, 2, 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] [2024-11-09 07:31:20,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:31:20,672 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)] === [2024-11-09 07:31:20,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:31:20,673 INFO L85 PathProgramCache]: Analyzing trace with hash -740706477, now seen corresponding path program 1 times [2024-11-09 07:31:20,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:31:20,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84921199] [2024-11-09 07:31:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:31:20,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:31:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:31:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1005 trivial. 0 not checked. [2024-11-09 07:31:24,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:31:24,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84921199] [2024-11-09 07:31:24,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84921199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:31:24,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:31:24,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:31:24,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715091484] [2024-11-09 07:31:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:31:24,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:31:24,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:31:24,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:31:24,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:31:24,833 INFO L87 Difference]: Start difference. First operand 56968 states and 84766 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, (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) [2024-11-09 07:31:26,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:29,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:31,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:31:43,369 INFO L93 Difference]: Finished difference Result 56974 states and 84771 transitions. [2024-11-09 07:31:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:31:43,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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 227 [2024-11-09 07:31:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:31:43,789 INFO L225 Difference]: With dead ends: 56974 [2024-11-09 07:31:43,789 INFO L226 Difference]: Without dead ends: 56972 [2024-11-09 07:31:44,079 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 [2024-11-09 07:31:44,080 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3223 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s 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, 15.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:31:44,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2024-11-09 07:31:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56972 states. [2024-11-09 07:31:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56972 to 56972. [2024-11-09 07:31:47,295 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) [2024-11-09 07:31:47,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56972 states to 56972 states and 84769 transitions. [2024-11-09 07:31:47,662 INFO L78 Accepts]: Start accepts. Automaton has 56972 states and 84769 transitions. Word has length 227 [2024-11-09 07:31:47,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:31:47,663 INFO L471 AbstractCegarLoop]: Abstraction has 56972 states and 84769 transitions. [2024-11-09 07:31:47,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 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) [2024-11-09 07:31:47,664 INFO L276 IsEmpty]: Start isEmpty. Operand 56972 states and 84769 transitions. [2024-11-09 07:31:47,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-09 07:31:47,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:31:47,685 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] [2024-11-09 07:31:47,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:31:47,685 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)] === [2024-11-09 07:31:47,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:31:47,686 INFO L85 PathProgramCache]: Analyzing trace with hash -660095417, now seen corresponding path program 1 times [2024-11-09 07:31:47,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:31:47,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189168812] [2024-11-09 07:31:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:31:47,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:31:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:31:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2024-11-09 07:31:51,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:31:51,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189168812] [2024-11-09 07:31:51,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189168812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:31:51,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:31:51,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:31:51,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495800700] [2024-11-09 07:31:51,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:31:51,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:31:51,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:31:51,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:31:51,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:31:51,571 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) [2024-11-09 07:31:53,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:55,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:31:57,975 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 [] [2024-11-09 07:32:10,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:32:10,820 INFO L93 Difference]: Finished difference Result 56978 states and 84774 transitions. [2024-11-09 07:32:10,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:32:10,821 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 [2024-11-09 07:32:10,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:32:11,279 INFO L225 Difference]: With dead ends: 56978 [2024-11-09 07:32:11,279 INFO L226 Difference]: Without dead ends: 56976 [2024-11-09 07:32:11,312 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 [2024-11-09 07:32:11,313 INFO L432 NwaCegarLoop]: 2859 mSDtfsCounter, 3221 mSDsluCounter, 5699 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s 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, 16.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:32:11,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3222 Valid, 8558 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1289 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2024-11-09 07:32:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56976 states. [2024-11-09 07:32:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56976 to 56976. [2024-11-09 07:32:14,721 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) [2024-11-09 07:32:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56976 states to 56976 states and 84772 transitions. [2024-11-09 07:32:15,069 INFO L78 Accepts]: Start accepts. Automaton has 56976 states and 84772 transitions. Word has length 233 [2024-11-09 07:32:15,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:32:15,069 INFO L471 AbstractCegarLoop]: Abstraction has 56976 states and 84772 transitions. [2024-11-09 07:32:15,070 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) [2024-11-09 07:32:15,070 INFO L276 IsEmpty]: Start isEmpty. Operand 56976 states and 84772 transitions. [2024-11-09 07:32:15,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-09 07:32:15,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:32:15,090 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] [2024-11-09 07:32:15,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:32:15,091 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)] === [2024-11-09 07:32:15,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:32:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2141535793, now seen corresponding path program 1 times [2024-11-09 07:32:15,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:32:15,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019349793] [2024-11-09 07:32:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:32:15,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:32:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:32:19,102 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-11-09 07:32:19,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:32:19,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019349793] [2024-11-09 07:32:19,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019349793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:32:19,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:32:19,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:32:19,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465428847] [2024-11-09 07:32:19,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:32:19,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:32:19,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:32:19,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:32:19,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:32:19,109 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) [2024-11-09 07:32:21,163 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 [] [2024-11-09 07:32:23,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:32:35,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:32:40,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:32:40,072 INFO L93 Difference]: Finished difference Result 139386 states and 207514 transitions. [2024-11-09 07:32:40,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:32:40,073 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 [2024-11-09 07:32:40,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:32:40,580 INFO L225 Difference]: With dead ends: 139386 [2024-11-09 07:32:40,580 INFO L226 Difference]: Without dead ends: 83352 [2024-11-09 07:32:40,838 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 [2024-11-09 07:32:40,838 INFO L432 NwaCegarLoop]: 4879 mSDtfsCounter, 2942 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s 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, 15.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:32:40,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2942 Valid, 7684 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1199 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2024-11-09 07:32:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83352 states.