./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-ethernet-dnet.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:00:21,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:00:21,349 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:00:21,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:00:21,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:00:21,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:00:21,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:00:21,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:00:21,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:00:21,375 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:00:21,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:00:21,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:00:21,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:00:21,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:00:21,376 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:00:21,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:00:21,377 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:00:21,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:00:21,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:00:21,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:00:21,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:00:21,379 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 [2024-12-02 12:00:21,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:00:21,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:00:21,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:00:21,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:00:21,597 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:00:21,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2024-12-02 12:00:24,214 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/data/d1ebdd2e1/4a5ab365f2d34c93b1463d364be00210/FLAG5d1bd1560 [2024-12-02 12:00:24,639 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:00:24,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2024-12-02 12:00:24,668 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/data/d1ebdd2e1/4a5ab365f2d34c93b1463d364be00210/FLAG5d1bd1560 [2024-12-02 12:00:24,796 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/data/d1ebdd2e1/4a5ab365f2d34c93b1463d364be00210 [2024-12-02 12:00:24,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:00:24,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:00:24,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:00:24,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:00:24,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:00:24,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:00:24" (1/1) ... [2024-12-02 12:00:24,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240e4309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:24, skipping insertion in model container [2024-12-02 12:00:24,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:00:24" (1/1) ... [2024-12-02 12:00:24,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:00:27,015 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2024-12-02 12:00:27,018 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2024-12-02 12:00:27,019 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2024-12-02 12:00:27,019 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2024-12-02 12:00:27,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:00:27,058 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:00:27,209 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"); [5181] [2024-12-02 12:00:27,211 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)); [5188] [2024-12-02 12:00:27,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5195] [2024-12-02 12:00:27,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5244] [2024-12-02 12:00:27,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5316] [2024-12-02 12:00:27,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5323] [2024-12-02 12:00:27,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [5522-5523] [2024-12-02 12:00:27,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5529] [2024-12-02 12:00:27,471 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2024-12-02 12:00:27,472 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2024-12-02 12:00:27,472 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2024-12-02 12:00:27,473 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_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2024-12-02 12:00:27,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:00:27,681 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:00:27,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27 WrapperNode [2024-12-02 12:00:27,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:00:27,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:00:27,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:00:27,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:00:27,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:27,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:27,887 INFO L138 Inliner]: procedures = 410, calls = 2035, calls flagged for inlining = 211, calls inlined = 188, statements flattened = 4788 [2024-12-02 12:00:27,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:00:27,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:00:27,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:00:27,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:00:27,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:27,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:27,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,710 INFO L175 MemorySlicer]: Split 898 memory accesses to 23 slices as follows [4, 1, 4, 5, 1, 4, 1, 13, 4, 1, 5, 1, 449, 2, 26, 5, 5, 5, 203, 5, 4, 149, 1]. 50 percent of accesses are in the largest equivalence class. The 224 initializations are split as follows [4, 1, 4, 5, 1, 4, 1, 13, 4, 0, 5, 1, 5, 2, 0, 5, 5, 5, 0, 5, 4, 149, 1]. The 367 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 169, 0, 24, 0, 0, 0, 174, 0, 0, 0, 0]. [2024-12-02 12:00:28,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,805 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,901 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:00:28,902 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:00:28,902 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:00:28,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:00:28,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (1/1) ... [2024-12-02 12:00:28,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:00:28,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:00:28,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:00:28,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8ebc2a-db0c-4db8-b81a-76d8ebcbd54e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:00:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_probe [2024-12-02 12:00:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_probe [2024-12-02 12:00:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 12:00:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 12:00:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 12:00:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 12:00:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 12:00:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 12:00:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 12:00:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 12:00:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-12-02 12:00:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-12-02 12:00:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2024-12-02 12:00:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2024-12-02 12:00:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure __dnet_set_hwaddr [2024-12-02 12:00:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __dnet_set_hwaddr [2024-12-02 12:00:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-12-02 12:00:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-12-02 12:00:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-12-02 12:00:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-12-02 12:00:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-12-02 12:00:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-12-02 12:00:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-12-02 12:00:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 12:00:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-12-02 12:00:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 12:00:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 12:00:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 12:00:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#21 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#22 [2024-12-02 12:00:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2024-12-02 12:00:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 12:00:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 12:00:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-02 12:00:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-12-02 12:00:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 12:00:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 12:00:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-12-02 12:00:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_reset_hw [2024-12-02 12:00:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_reset_hw [2024-12-02 12:00:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 12:00:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-12-02 12:00:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-12-02 12:00:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-12-02 12:00:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2024-12-02 12:00:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2024-12-02 12:00:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 12:00:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 12:00:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:00:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 12:00:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:00:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 12:00:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-12-02 12:00:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-12-02 12:00:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-02 12:00:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-12-02 12:00:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2024-12-02 12:00:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-12-02 12:00:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-12-02 12:00:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:00:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-12-02 12:00:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2024-12-02 12:00:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 12:00:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 12:00:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#21 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#22 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:00:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 12:00:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 12:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2024-12-02 12:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 12:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dnet [2024-12-02 12:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dnet [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 12:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_readw_mac [2024-12-02 12:00:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_readw_mac [2024-12-02 12:00:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 12:00:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 12:00:28,982 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-12-02 12:00:28,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-12-02 12:00:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-12-02 12:00:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-12-02 12:00:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 12:00:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 12:00:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-12-02 12:00:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-12-02 12:00:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-12-02 12:00:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-12-02 12:00:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_close [2024-12-02 12:00:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_close [2024-12-02 12:00:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2024-12-02 12:00:28,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2024-12-02 12:00:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_handle_link_change [2024-12-02 12:00:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_handle_link_change [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-12-02 12:00:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 12:00:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_writew_mac [2024-12-02 12:00:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_writew_mac [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-12-02 12:00:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 12:00:28,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:00:28,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 12:00:28,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-12-02 12:00:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 12:00:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_remove [2024-12-02 12:00:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_remove [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-12-02 12:00:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_open [2024-12-02 12:00:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_open [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure phy_connect [2024-12-02 12:00:28,986 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_connect [2024-12-02 12:00:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-12-02 12:00:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-12-02 12:00:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 12:00:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-12-02 12:00:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-12-02 12:00:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-12-02 12:00:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-12-02 12:00:29,831 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:00:29,834 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:00:30,561 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 12:00:42,222 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-12-02 12:00:42,703 INFO L? ?]: Removed 1836 outVars from TransFormulas that were not future-live. [2024-12-02 12:00:42,704 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:00:42,736 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:00:42,736 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 12:00:42,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:00:42 BoogieIcfgContainer [2024-12-02 12:00:42,736 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:00:42,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:00:42,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:00:42,743 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:00:42,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:00:24" (1/3) ... [2024-12-02 12:00:42,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1533f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:00:42, skipping insertion in model container [2024-12-02 12:00:42,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:00:27" (2/3) ... [2024-12-02 12:00:42,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1533f5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:00:42, skipping insertion in model container [2024-12-02 12:00:42,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:00:42" (3/3) ... [2024-12-02 12:00:42,745 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2024-12-02 12:00:42,760 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:00:42,763 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i that has 68 procedures, 1577 locations, 1 initial locations, 3 loop locations, and 3 error locations. [2024-12-02 12:00:42,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:00:42,855 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=PETRI_NET, 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;@24d1942e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:00:42,855 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-02 12:00:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 1575 states, 1137 states have (on average 1.2770448548812665) internal successors, (1452), 1150 states have internal predecessors, (1452), 369 states have call successors, (369), 67 states have call predecessors, (369), 66 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2024-12-02 12:00:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 12:00:42,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:42,877 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:00:42,877 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)] === [2024-12-02 12:00:42,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:42,882 INFO L85 PathProgramCache]: Analyzing trace with hash 418153186, now seen corresponding path program 1 times [2024-12-02 12:00:42,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:42,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129898302] [2024-12-02 12:00:42,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:42,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:00:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 12:00:46,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:00:46,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129898302] [2024-12-02 12:00:46,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129898302] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:00:46,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:00:46,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:00:46,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127713181] [2024-12-02 12:00:46,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:00:46,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:00:46,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:00:46,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:00:46,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:00:46,102 INFO L87 Difference]: Start difference. First operand has 1575 states, 1137 states have (on average 1.2770448548812665) internal successors, (1452), 1150 states have internal predecessors, (1452), 369 states have call successors, (369), 67 states have call predecessors, (369), 66 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:00:50,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:00:50,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:00:50,463 INFO L93 Difference]: Finished difference Result 4595 states and 6461 transitions. [2024-12-02 12:00:50,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:00:50,465 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 134 [2024-12-02 12:00:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:00:50,497 INFO L225 Difference]: With dead ends: 4595 [2024-12-02 12:00:50,497 INFO L226 Difference]: Without dead ends: 3033 [2024-12-02 12:00:50,510 INFO L434 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 [2024-12-02 12:00:50,513 INFO L435 NwaCegarLoop]: 2187 mSDtfsCounter, 2067 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:00:50,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 4312 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:00:50,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2024-12-02 12:00:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3029. [2024-12-02 12:00:50,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 2208 states have (on average 1.2672101449275361) internal successors, (2798), 2232 states have internal predecessors, (2798), 689 states have call successors, (689), 130 states have call predecessors, (689), 129 states have return successors, (686), 682 states have call predecessors, (686), 686 states have call successors, (686) [2024-12-02 12:00:50,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 4173 transitions. [2024-12-02 12:00:50,747 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 4173 transitions. Word has length 134 [2024-12-02 12:00:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:50,748 INFO L471 AbstractCegarLoop]: Abstraction has 3029 states and 4173 transitions. [2024-12-02 12:00:50,748 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:00:50,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 4173 transitions. [2024-12-02 12:00:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-12-02 12:00:50,752 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:50,753 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:00:50,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:00:50,753 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)] === [2024-12-02 12:00:50,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2122086238, now seen corresponding path program 1 times [2024-12-02 12:00:50,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:50,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853520239] [2024-12-02 12:00:50,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:50,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:00:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:00:53,143 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 12:00:53,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:00:53,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853520239] [2024-12-02 12:00:53,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853520239] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:00:53,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:00:53,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:00:53,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353111677] [2024-12-02 12:00:53,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:00:53,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:00:53,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:00:53,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:00:53,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:00:53,146 INFO L87 Difference]: Start difference. First operand 3029 states and 4173 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:00:57,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:00:57,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:00:57,645 INFO L93 Difference]: Finished difference Result 8787 states and 12179 transitions. [2024-12-02 12:00:57,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:00:57,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2024-12-02 12:00:57,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:00:57,692 INFO L225 Difference]: With dead ends: 8787 [2024-12-02 12:00:57,692 INFO L226 Difference]: Without dead ends: 5783 [2024-12-02 12:00:57,709 INFO L434 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 [2024-12-02 12:00:57,709 INFO L435 NwaCegarLoop]: 2442 mSDtfsCounter, 1954 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1954 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:00:57,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1954 Valid, 4554 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 12:00:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5783 states. [2024-12-02 12:00:58,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5783 to 5748. [2024-12-02 12:00:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 4202 states have (on average 1.2653498334126607) internal successors, (5317), 4252 states have internal predecessors, (5317), 1288 states have call successors, (1288), 258 states have call predecessors, (1288), 255 states have return successors, (1385), 1267 states have call predecessors, (1385), 1285 states have call successors, (1385) [2024-12-02 12:00:58,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 7990 transitions. [2024-12-02 12:00:58,059 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 7990 transitions. Word has length 138 [2024-12-02 12:00:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:00:58,060 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 7990 transitions. [2024-12-02 12:00:58,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:00:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 7990 transitions. [2024-12-02 12:00:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-12-02 12:00:58,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:00:58,064 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:00:58,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:00:58,064 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)] === [2024-12-02 12:00:58,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:00:58,065 INFO L85 PathProgramCache]: Analyzing trace with hash 957104565, now seen corresponding path program 1 times [2024-12-02 12:00:58,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:00:58,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546766305] [2024-12-02 12:00:58,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:00:58,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:00,350 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 12:01:00,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:00,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546766305] [2024-12-02 12:01:00,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546766305] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:00,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:00,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:01:00,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210128698] [2024-12-02 12:01:00,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:00,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:01:00,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:00,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:01:00,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:01:00,353 INFO L87 Difference]: Start difference. First operand 5748 states and 7990 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:01:04,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:01:05,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:05,341 INFO L93 Difference]: Finished difference Result 16374 states and 22698 transitions. [2024-12-02 12:01:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:01:05,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 145 [2024-12-02 12:01:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:05,416 INFO L225 Difference]: With dead ends: 16374 [2024-12-02 12:01:05,416 INFO L226 Difference]: Without dead ends: 10651 [2024-12-02 12:01:05,447 INFO L434 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 [2024-12-02 12:01:05,448 INFO L435 NwaCegarLoop]: 2391 mSDtfsCounter, 1796 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 4442 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:05,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 4442 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 121 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 12:01:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10651 states. [2024-12-02 12:01:05,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10651 to 10612. [2024-12-02 12:01:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10612 states, 7712 states have (on average 1.2547977178423237) internal successors, (9677), 7818 states have internal predecessors, (9677), 2400 states have call successors, (2400), 502 states have call predecessors, (2400), 497 states have return successors, (2503), 2351 states have call predecessors, (2503), 2397 states have call successors, (2503) [2024-12-02 12:01:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10612 states to 10612 states and 14580 transitions. [2024-12-02 12:01:06,007 INFO L78 Accepts]: Start accepts. Automaton has 10612 states and 14580 transitions. Word has length 145 [2024-12-02 12:01:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:06,008 INFO L471 AbstractCegarLoop]: Abstraction has 10612 states and 14580 transitions. [2024-12-02 12:01:06,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:01:06,009 INFO L276 IsEmpty]: Start isEmpty. Operand 10612 states and 14580 transitions. [2024-12-02 12:01:06,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 12:01:06,012 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:06,012 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:01:06,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:01:06,012 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)] === [2024-12-02 12:01:06,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:06,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1677272146, now seen corresponding path program 1 times [2024-12-02 12:01:06,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:06,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975942555] [2024-12-02 12:01:06,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:06,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-12-02 12:01:08,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:08,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975942555] [2024-12-02 12:01:08,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975942555] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:08,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:08,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:01:08,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720112745] [2024-12-02 12:01:08,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:08,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:01:08,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:08,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:01:08,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:01:08,323 INFO L87 Difference]: Start difference. First operand 10612 states and 14580 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:01:12,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:01:13,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:13,157 INFO L93 Difference]: Finished difference Result 28500 states and 39268 transitions. [2024-12-02 12:01:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:01:13,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 153 [2024-12-02 12:01:13,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:13,261 INFO L225 Difference]: With dead ends: 28500 [2024-12-02 12:01:13,261 INFO L226 Difference]: Without dead ends: 17913 [2024-12-02 12:01:13,296 INFO L434 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 [2024-12-02 12:01:13,297 INFO L435 NwaCegarLoop]: 2160 mSDtfsCounter, 1599 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 4233 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:13,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 4233 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:01:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17913 states. [2024-12-02 12:01:14,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17913 to 17866. [2024-12-02 12:01:14,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17866 states, 12972 states have (on average 1.2495374653098983) internal successors, (16209), 13174 states have internal predecessors, (16209), 3952 states have call successors, (3952), 956 states have call predecessors, (3952), 939 states have return successors, (4467), 3827 states have call predecessors, (4467), 3949 states have call successors, (4467) [2024-12-02 12:01:14,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17866 states to 17866 states and 24628 transitions. [2024-12-02 12:01:14,492 INFO L78 Accepts]: Start accepts. Automaton has 17866 states and 24628 transitions. Word has length 153 [2024-12-02 12:01:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:14,492 INFO L471 AbstractCegarLoop]: Abstraction has 17866 states and 24628 transitions. [2024-12-02 12:01:14,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 12:01:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 17866 states and 24628 transitions. [2024-12-02 12:01:14,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 12:01:14,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:14,497 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 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] [2024-12-02 12:01:14,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:01:14,497 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)] === [2024-12-02 12:01:14,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1093772875, now seen corresponding path program 1 times [2024-12-02 12:01:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:14,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066197242] [2024-12-02 12:01:14,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:14,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-12-02 12:01:16,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:16,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066197242] [2024-12-02 12:01:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066197242] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:16,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:16,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:01:16,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786982647] [2024-12-02 12:01:16,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:16,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:01:16,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:16,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:01:16,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:01:16,764 INFO L87 Difference]: Start difference. First operand 17866 states and 24628 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:01:20,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:01:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:21,426 INFO L93 Difference]: Finished difference Result 33707 states and 46494 transitions. [2024-12-02 12:01:21,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:01:21,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 169 [2024-12-02 12:01:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:21,478 INFO L225 Difference]: With dead ends: 33707 [2024-12-02 12:01:21,478 INFO L226 Difference]: Without dead ends: 15866 [2024-12-02 12:01:21,514 INFO L434 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 [2024-12-02 12:01:21,515 INFO L435 NwaCegarLoop]: 3692 mSDtfsCounter, 2006 mSDsluCounter, 2093 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 5785 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:21,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 5785 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 58 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:01:21,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15866 states. [2024-12-02 12:01:21,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15866 to 15834. [2024-12-02 12:01:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15834 states, 11580 states have (on average 1.2455958549222799) internal successors, (14424), 11769 states have internal predecessors, (14424), 3420 states have call successors, (3420), 844 states have call predecessors, (3420), 831 states have return successors, (3909), 3302 states have call predecessors, (3909), 3417 states have call successors, (3909) [2024-12-02 12:01:21,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15834 states to 15834 states and 21753 transitions. [2024-12-02 12:01:21,996 INFO L78 Accepts]: Start accepts. Automaton has 15834 states and 21753 transitions. Word has length 169 [2024-12-02 12:01:21,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:21,996 INFO L471 AbstractCegarLoop]: Abstraction has 15834 states and 21753 transitions. [2024-12-02 12:01:21,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:01:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 15834 states and 21753 transitions. [2024-12-02 12:01:21,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-12-02 12:01:21,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:21,998 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 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] [2024-12-02 12:01:21,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:01:21,999 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2024-12-02 12:01:21,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:21,999 INFO L85 PathProgramCache]: Analyzing trace with hash 657378656, now seen corresponding path program 1 times [2024-12-02 12:01:21,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:21,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735853657] [2024-12-02 12:01:21,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:21,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2024-12-02 12:01:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:24,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735853657] [2024-12-02 12:01:24,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735853657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:24,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:24,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:01:24,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137600154] [2024-12-02 12:01:24,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:24,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:01:24,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:24,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:01:24,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:01:24,380 INFO L87 Difference]: Start difference. First operand 15834 states and 21753 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-12-02 12:01:28,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:01:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:29,022 INFO L93 Difference]: Finished difference Result 46625 states and 64144 transitions. [2024-12-02 12:01:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:01:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 186 [2024-12-02 12:01:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:29,181 INFO L225 Difference]: With dead ends: 46625 [2024-12-02 12:01:29,181 INFO L226 Difference]: Without dead ends: 30885 [2024-12-02 12:01:29,230 INFO L434 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 [2024-12-02 12:01:29,231 INFO L435 NwaCegarLoop]: 2274 mSDtfsCounter, 2066 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 4395 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:29,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 4395 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:01:29,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30885 states. [2024-12-02 12:01:30,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30885 to 30863. [2024-12-02 12:01:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30863 states, 22624 states have (on average 1.2476573550212164) internal successors, (28227), 22960 states have internal predecessors, (28227), 6623 states have call successors, (6623), 1638 states have call predecessors, (6623), 1613 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30863 states to 30863 states and 42454 transitions. [2024-12-02 12:01:30,342 INFO L78 Accepts]: Start accepts. Automaton has 30863 states and 42454 transitions. Word has length 186 [2024-12-02 12:01:30,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:30,342 INFO L471 AbstractCegarLoop]: Abstraction has 30863 states and 42454 transitions. [2024-12-02 12:01:30,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2024-12-02 12:01:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 30863 states and 42454 transitions. [2024-12-02 12:01:30,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-12-02 12:01:30,345 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:30,345 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 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] [2024-12-02 12:01:30,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:01:30,345 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)] === [2024-12-02 12:01:30,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1080080482, now seen corresponding path program 1 times [2024-12-02 12:01:30,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:30,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955481779] [2024-12-02 12:01:30,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:30,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:33,147 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-12-02 12:01:33,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:33,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955481779] [2024-12-02 12:01:33,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955481779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:33,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:33,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:33,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281786057] [2024-12-02 12:01:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:33,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:33,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:33,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:33,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:33,150 INFO L87 Difference]: Start difference. First operand 30863 states and 42454 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 12:01:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:33,783 INFO L93 Difference]: Finished difference Result 30869 states and 42459 transitions. [2024-12-02 12:01:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:01:33,783 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 186 [2024-12-02 12:01:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:33,883 INFO L225 Difference]: With dead ends: 30869 [2024-12-02 12:01:33,884 INFO L226 Difference]: Without dead ends: 30867 [2024-12-02 12:01:33,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:01:33,900 INFO L435 NwaCegarLoop]: 2144 mSDtfsCounter, 2098 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 6419 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:33,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 6419 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:01:33,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30867 states. [2024-12-02 12:01:34,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30867 to 30867. [2024-12-02 12:01:34,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30867 states, 22627 states have (on average 1.2476245193795024) internal successors, (28230), 22963 states have internal predecessors, (28230), 6623 states have call successors, (6623), 1639 states have call predecessors, (6623), 1614 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30867 states to 30867 states and 42457 transitions. [2024-12-02 12:01:34,994 INFO L78 Accepts]: Start accepts. Automaton has 30867 states and 42457 transitions. Word has length 186 [2024-12-02 12:01:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:34,995 INFO L471 AbstractCegarLoop]: Abstraction has 30867 states and 42457 transitions. [2024-12-02 12:01:34,995 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, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 12:01:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 30867 states and 42457 transitions. [2024-12-02 12:01:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 12:01:34,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:34,998 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 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] [2024-12-02 12:01:34,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:01:34,998 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)] === [2024-12-02 12:01:34,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:34,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1124678163, now seen corresponding path program 1 times [2024-12-02 12:01:34,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:34,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846774638] [2024-12-02 12:01:34,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:34,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:37,355 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-12-02 12:01:37,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:37,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846774638] [2024-12-02 12:01:37,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846774638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:37,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:37,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:37,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044866621] [2024-12-02 12:01:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:37,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:37,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:37,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:37,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:37,358 INFO L87 Difference]: Start difference. First operand 30867 states and 42457 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:01:38,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:38,387 INFO L93 Difference]: Finished difference Result 30873 states and 42462 transitions. [2024-12-02 12:01:38,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:01:38,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2024-12-02 12:01:38,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:38,514 INFO L225 Difference]: With dead ends: 30873 [2024-12-02 12:01:38,514 INFO L226 Difference]: Without dead ends: 30871 [2024-12-02 12:01:38,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:01:38,529 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2094 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:38,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:01:38,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30871 states. [2024-12-02 12:01:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30871 to 30871. [2024-12-02 12:01:39,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30871 states, 22630 states have (on average 1.2475916924436588) internal successors, (28233), 22966 states have internal predecessors, (28233), 6623 states have call successors, (6623), 1640 states have call predecessors, (6623), 1615 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:39,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30871 states to 30871 states and 42460 transitions. [2024-12-02 12:01:39,594 INFO L78 Accepts]: Start accepts. Automaton has 30871 states and 42460 transitions. Word has length 191 [2024-12-02 12:01:39,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:39,595 INFO L471 AbstractCegarLoop]: Abstraction has 30871 states and 42460 transitions. [2024-12-02 12:01:39,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:01:39,595 INFO L276 IsEmpty]: Start isEmpty. Operand 30871 states and 42460 transitions. [2024-12-02 12:01:39,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 12:01:39,596 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:39,596 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 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] [2024-12-02 12:01:39,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:01:39,596 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)] === [2024-12-02 12:01:39,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:39,597 INFO L85 PathProgramCache]: Analyzing trace with hash -122669374, now seen corresponding path program 1 times [2024-12-02 12:01:39,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:39,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320474304] [2024-12-02 12:01:39,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:39,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2024-12-02 12:01:41,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:41,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320474304] [2024-12-02 12:01:41,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320474304] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:41,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:41,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:41,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346975919] [2024-12-02 12:01:41,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:41,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:41,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:41,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:41,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:41,619 INFO L87 Difference]: Start difference. First operand 30871 states and 42460 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:01:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:42,290 INFO L93 Difference]: Finished difference Result 30877 states and 42465 transitions. [2024-12-02 12:01:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:01:42,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2024-12-02 12:01:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:42,395 INFO L225 Difference]: With dead ends: 30877 [2024-12-02 12:01:42,395 INFO L226 Difference]: Without dead ends: 30875 [2024-12-02 12:01:42,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:01:42,412 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2093 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:42,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:01:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30875 states. [2024-12-02 12:01:43,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30875 to 30875. [2024-12-02 12:01:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30875 states, 22633 states have (on average 1.247558874210224) internal successors, (28236), 22969 states have internal predecessors, (28236), 6623 states have call successors, (6623), 1641 states have call predecessors, (6623), 1616 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30875 states to 30875 states and 42463 transitions. [2024-12-02 12:01:43,391 INFO L78 Accepts]: Start accepts. Automaton has 30875 states and 42463 transitions. Word has length 196 [2024-12-02 12:01:43,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:43,392 INFO L471 AbstractCegarLoop]: Abstraction has 30875 states and 42463 transitions. [2024-12-02 12:01:43,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:01:43,392 INFO L276 IsEmpty]: Start isEmpty. Operand 30875 states and 42463 transitions. [2024-12-02 12:01:43,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 12:01:43,393 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:43,394 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 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] [2024-12-02 12:01:43,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:01:43,394 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)] === [2024-12-02 12:01:43,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:43,394 INFO L85 PathProgramCache]: Analyzing trace with hash 180610867, now seen corresponding path program 1 times [2024-12-02 12:01:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:43,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459359233] [2024-12-02 12:01:43,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:45,708 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2024-12-02 12:01:45,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:45,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459359233] [2024-12-02 12:01:45,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459359233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:45,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:45,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:45,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269238162] [2024-12-02 12:01:45,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:45,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:45,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:45,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:45,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:45,709 INFO L87 Difference]: Start difference. First operand 30875 states and 42463 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 12:01:46,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:46,966 INFO L93 Difference]: Finished difference Result 30881 states and 42468 transitions. [2024-12-02 12:01:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:01:46,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 201 [2024-12-02 12:01:46,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:47,066 INFO L225 Difference]: With dead ends: 30881 [2024-12-02 12:01:47,066 INFO L226 Difference]: Without dead ends: 30879 [2024-12-02 12:01:47,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:01:47,082 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2092 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:47,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:01:47,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30879 states. [2024-12-02 12:01:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30879 to 30879. [2024-12-02 12:01:48,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30879 states, 22636 states have (on average 1.2475260646757378) internal successors, (28239), 22972 states have internal predecessors, (28239), 6623 states have call successors, (6623), 1642 states have call predecessors, (6623), 1617 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:48,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30879 states to 30879 states and 42466 transitions. [2024-12-02 12:01:48,102 INFO L78 Accepts]: Start accepts. Automaton has 30879 states and 42466 transitions. Word has length 201 [2024-12-02 12:01:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:48,102 INFO L471 AbstractCegarLoop]: Abstraction has 30879 states and 42466 transitions. [2024-12-02 12:01:48,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 12:01:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 30879 states and 42466 transitions. [2024-12-02 12:01:48,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 12:01:48,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:48,104 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 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] [2024-12-02 12:01:48,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:01:48,105 INFO L396 AbstractCegarLoop]: === Iteration 11 === 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)] === [2024-12-02 12:01:48,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:48,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1651436834, now seen corresponding path program 1 times [2024-12-02 12:01:48,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:48,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267132049] [2024-12-02 12:01:48,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:48,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:50,299 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2024-12-02 12:01:50,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:50,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267132049] [2024-12-02 12:01:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267132049] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:50,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:50,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:50,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763344299] [2024-12-02 12:01:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:50,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:50,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:50,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:50,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:50,301 INFO L87 Difference]: Start difference. First operand 30879 states and 42466 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:01:51,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:51,076 INFO L93 Difference]: Finished difference Result 30885 states and 42471 transitions. [2024-12-02 12:01:51,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:01:51,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2024-12-02 12:01:51,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:51,177 INFO L225 Difference]: With dead ends: 30885 [2024-12-02 12:01:51,177 INFO L226 Difference]: Without dead ends: 30883 [2024-12-02 12:01:51,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:01:51,194 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2091 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:51,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:01:51,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30883 states. [2024-12-02 12:01:52,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30883 to 30883. [2024-12-02 12:01:52,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30883 states, 22639 states have (on average 1.247493263836742) internal successors, (28242), 22975 states have internal predecessors, (28242), 6623 states have call successors, (6623), 1643 states have call predecessors, (6623), 1618 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30883 states to 30883 states and 42469 transitions. [2024-12-02 12:01:52,242 INFO L78 Accepts]: Start accepts. Automaton has 30883 states and 42469 transitions. Word has length 206 [2024-12-02 12:01:52,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:52,242 INFO L471 AbstractCegarLoop]: Abstraction has 30883 states and 42469 transitions. [2024-12-02 12:01:52,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:01:52,242 INFO L276 IsEmpty]: Start isEmpty. Operand 30883 states and 42469 transitions. [2024-12-02 12:01:52,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 12:01:52,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:52,244 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:01:52,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:01:52,244 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:01:52,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1037196371, now seen corresponding path program 1 times [2024-12-02 12:01:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:52,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631123101] [2024-12-02 12:01:52,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:52,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2024-12-02 12:01:54,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:54,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631123101] [2024-12-02 12:01:54,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631123101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:54,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:54,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:54,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579795748] [2024-12-02 12:01:54,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:54,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:54,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:54,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:54,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:54,571 INFO L87 Difference]: Start difference. First operand 30883 states and 42469 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 12:01:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:01:55,493 INFO L93 Difference]: Finished difference Result 30889 states and 42474 transitions. [2024-12-02 12:01:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:01:55,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 211 [2024-12-02 12:01:55,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:01:55,636 INFO L225 Difference]: With dead ends: 30889 [2024-12-02 12:01:55,636 INFO L226 Difference]: Without dead ends: 30887 [2024-12-02 12:01:55,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:01:55,652 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2090 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:01:55,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:01:55,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30887 states. [2024-12-02 12:01:56,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30887 to 30887. [2024-12-02 12:01:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30887 states, 22642 states have (on average 1.2474604716897801) internal successors, (28245), 22978 states have internal predecessors, (28245), 6623 states have call successors, (6623), 1644 states have call predecessors, (6623), 1619 states have return successors, (7604), 6428 states have call predecessors, (7604), 6620 states have call successors, (7604) [2024-12-02 12:01:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30887 states to 30887 states and 42472 transitions. [2024-12-02 12:01:56,802 INFO L78 Accepts]: Start accepts. Automaton has 30887 states and 42472 transitions. Word has length 211 [2024-12-02 12:01:56,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:01:56,803 INFO L471 AbstractCegarLoop]: Abstraction has 30887 states and 42472 transitions. [2024-12-02 12:01:56,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 12:01:56,803 INFO L276 IsEmpty]: Start isEmpty. Operand 30887 states and 42472 transitions. [2024-12-02 12:01:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-12-02 12:01:56,805 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:01:56,805 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:01:56,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:01:56,805 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:01:56,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:01:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash -973677694, now seen corresponding path program 1 times [2024-12-02 12:01:56,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:01:56,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258848087] [2024-12-02 12:01:56,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:01:56,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:01:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:01:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2024-12-02 12:01:58,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:01:58,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258848087] [2024-12-02 12:01:58,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258848087] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:01:58,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:01:58,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:01:58,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064449976] [2024-12-02 12:01:58,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:01:58,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:01:58,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:01:58,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:01:58,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:01:58,915 INFO L87 Difference]: Start difference. First operand 30887 states and 42472 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:02:00,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:00,007 INFO L93 Difference]: Finished difference Result 32257 states and 43781 transitions. [2024-12-02 12:02:00,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:02:00,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 216 [2024-12-02 12:02:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:00,090 INFO L225 Difference]: With dead ends: 32257 [2024-12-02 12:02:00,090 INFO L226 Difference]: Without dead ends: 32255 [2024-12-02 12:02:00,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:02:00,101 INFO L435 NwaCegarLoop]: 2166 mSDtfsCounter, 1783 mSDsluCounter, 4691 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 6857 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:00,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 6857 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:02:00,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32255 states. [2024-12-02 12:02:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32255 to 32255. [2024-12-02 12:02:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32255 states, 23503 states have (on average 1.240011913372761) internal successors, (29144), 23863 states have internal predecessors, (29144), 6827 states have call successors, (6827), 1947 states have call predecessors, (6827), 1922 states have return successors, (7808), 6632 states have call predecessors, (7808), 6824 states have call successors, (7808) [2024-12-02 12:02:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32255 states to 32255 states and 43779 transitions. [2024-12-02 12:02:01,306 INFO L78 Accepts]: Start accepts. Automaton has 32255 states and 43779 transitions. Word has length 216 [2024-12-02 12:02:01,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:01,306 INFO L471 AbstractCegarLoop]: Abstraction has 32255 states and 43779 transitions. [2024-12-02 12:02:01,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:02:01,306 INFO L276 IsEmpty]: Start isEmpty. Operand 32255 states and 43779 transitions. [2024-12-02 12:02:01,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-12-02 12:02:01,310 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:01,310 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 8, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:01,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:02:01,310 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:02:01,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:01,311 INFO L85 PathProgramCache]: Analyzing trace with hash -475358570, now seen corresponding path program 1 times [2024-12-02 12:02:01,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:01,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494244306] [2024-12-02 12:02:01,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:01,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 692 trivial. 0 not checked. [2024-12-02 12:02:03,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:03,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494244306] [2024-12-02 12:02:03,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494244306] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:03,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:03,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:02:03,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621044435] [2024-12-02 12:02:03,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:03,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:02:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:03,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:02:03,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:02:03,476 INFO L87 Difference]: Start difference. First operand 32255 states and 43779 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:02:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:04,612 INFO L93 Difference]: Finished difference Result 32261 states and 43784 transitions. [2024-12-02 12:02:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:02:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 239 [2024-12-02 12:02:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:04,710 INFO L225 Difference]: With dead ends: 32261 [2024-12-02 12:02:04,710 INFO L226 Difference]: Without dead ends: 32259 [2024-12-02 12:02:04,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:02:04,725 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2077 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:04,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:02:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32259 states. [2024-12-02 12:02:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32259 to 32259. [2024-12-02 12:02:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32259 states, 23506 states have (on average 1.239981281374968) internal successors, (29147), 23866 states have internal predecessors, (29147), 6827 states have call successors, (6827), 1948 states have call predecessors, (6827), 1923 states have return successors, (7808), 6632 states have call predecessors, (7808), 6824 states have call successors, (7808) [2024-12-02 12:02:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32259 states to 32259 states and 43782 transitions. [2024-12-02 12:02:06,106 INFO L78 Accepts]: Start accepts. Automaton has 32259 states and 43782 transitions. Word has length 239 [2024-12-02 12:02:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:06,107 INFO L471 AbstractCegarLoop]: Abstraction has 32259 states and 43782 transitions. [2024-12-02 12:02:06,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:02:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 32259 states and 43782 transitions. [2024-12-02 12:02:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-12-02 12:02:06,109 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:06,109 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:06,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:02:06,109 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:02:06,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1126302178, now seen corresponding path program 1 times [2024-12-02 12:02:06,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397358489] [2024-12-02 12:02:06,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:06,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-12-02 12:02:08,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397358489] [2024-12-02 12:02:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397358489] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:08,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:08,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:02:08,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823836319] [2024-12-02 12:02:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:08,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:02:08,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:08,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:02:08,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:02:08,215 INFO L87 Difference]: Start difference. First operand 32259 states and 43782 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-12-02 12:02:09,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:09,355 INFO L93 Difference]: Finished difference Result 32265 states and 43787 transitions. [2024-12-02 12:02:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:02:09,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 226 [2024-12-02 12:02:09,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:09,457 INFO L225 Difference]: With dead ends: 32265 [2024-12-02 12:02:09,457 INFO L226 Difference]: Without dead ends: 32263 [2024-12-02 12:02:09,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:02:09,474 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2087 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:09,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:02:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32263 states. [2024-12-02 12:02:10,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32263 to 32263. [2024-12-02 12:02:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32263 states, 23509 states have (on average 1.2399506571951167) internal successors, (29150), 23869 states have internal predecessors, (29150), 6827 states have call successors, (6827), 1949 states have call predecessors, (6827), 1924 states have return successors, (7808), 6632 states have call predecessors, (7808), 6824 states have call successors, (7808) [2024-12-02 12:02:10,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32263 states to 32263 states and 43785 transitions. [2024-12-02 12:02:10,857 INFO L78 Accepts]: Start accepts. Automaton has 32263 states and 43785 transitions. Word has length 226 [2024-12-02 12:02:10,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:10,858 INFO L471 AbstractCegarLoop]: Abstraction has 32263 states and 43785 transitions. [2024-12-02 12:02:10,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-12-02 12:02:10,858 INFO L276 IsEmpty]: Start isEmpty. Operand 32263 states and 43785 transitions. [2024-12-02 12:02:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-12-02 12:02:10,860 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:10,861 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:10,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:02:10,861 INFO L396 AbstractCegarLoop]: === Iteration 16 === 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)] === [2024-12-02 12:02:10,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:10,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1040359059, now seen corresponding path program 1 times [2024-12-02 12:02:10,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:10,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266908546] [2024-12-02 12:02:10,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:10,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:12,961 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2024-12-02 12:02:12,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:12,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266908546] [2024-12-02 12:02:12,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266908546] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:12,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:12,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:02:12,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638573991] [2024-12-02 12:02:12,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:12,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:02:12,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:12,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:02:12,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:02:12,963 INFO L87 Difference]: Start difference. First operand 32263 states and 43785 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:02:14,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:14,284 INFO L93 Difference]: Finished difference Result 32269 states and 43790 transitions. [2024-12-02 12:02:14,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:02:14,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 231 [2024-12-02 12:02:14,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:14,381 INFO L225 Difference]: With dead ends: 32269 [2024-12-02 12:02:14,382 INFO L226 Difference]: Without dead ends: 32267 [2024-12-02 12:02:14,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:02:14,397 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2086 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:14,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2087 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:02:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32267 states. [2024-12-02 12:02:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32267 to 32267. [2024-12-02 12:02:15,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32267 states, 23512 states have (on average 1.2399200408302145) internal successors, (29153), 23872 states have internal predecessors, (29153), 6827 states have call successors, (6827), 1950 states have call predecessors, (6827), 1925 states have return successors, (7808), 6632 states have call predecessors, (7808), 6824 states have call successors, (7808) [2024-12-02 12:02:15,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32267 states to 32267 states and 43788 transitions. [2024-12-02 12:02:15,921 INFO L78 Accepts]: Start accepts. Automaton has 32267 states and 43788 transitions. Word has length 231 [2024-12-02 12:02:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:15,922 INFO L471 AbstractCegarLoop]: Abstraction has 32267 states and 43788 transitions. [2024-12-02 12:02:15,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:02:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 32267 states and 43788 transitions. [2024-12-02 12:02:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-12-02 12:02:15,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:15,925 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 10, 10, 10, 10, 10, 10, 5, 5, 5, 3, 3, 3, 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] [2024-12-02 12:02:15,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:02:15,925 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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)] === [2024-12-02 12:02:15,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:15,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1520699165, now seen corresponding path program 1 times [2024-12-02 12:02:15,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:15,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23941515] [2024-12-02 12:02:15,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:15,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:18,150 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-12-02 12:02:18,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:18,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23941515] [2024-12-02 12:02:18,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23941515] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:18,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:18,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:02:18,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051176286] [2024-12-02 12:02:18,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:18,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:02:18,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:18,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:02:18,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:02:18,152 INFO L87 Difference]: Start difference. First operand 32267 states and 43788 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 12:02:22,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:02:24,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:24,319 INFO L93 Difference]: Finished difference Result 77956 states and 105971 transitions. [2024-12-02 12:02:24,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:02:24,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 229 [2024-12-02 12:02:24,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:24,454 INFO L225 Difference]: With dead ends: 77956 [2024-12-02 12:02:24,454 INFO L226 Difference]: Without dead ends: 45783 [2024-12-02 12:02:24,527 INFO L434 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 [2024-12-02 12:02:24,527 INFO L435 NwaCegarLoop]: 4083 mSDtfsCounter, 1992 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 6175 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:24,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 6175 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 59 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:02:24,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45783 states. [2024-12-02 12:02:26,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45783 to 45711. [2024-12-02 12:02:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45711 states, 33404 states have (on average 1.2400011974613818) internal successors, (41421), 33906 states have internal predecessors, (41421), 9589 states have call successors, (9589), 2748 states have call predecessors, (9589), 2715 states have return successors, (11036), 9324 states have call predecessors, (11036), 9586 states have call successors, (11036) [2024-12-02 12:02:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45711 states to 45711 states and 62046 transitions. [2024-12-02 12:02:26,721 INFO L78 Accepts]: Start accepts. Automaton has 45711 states and 62046 transitions. Word has length 229 [2024-12-02 12:02:26,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:26,721 INFO L471 AbstractCegarLoop]: Abstraction has 45711 states and 62046 transitions. [2024-12-02 12:02:26,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-12-02 12:02:26,721 INFO L276 IsEmpty]: Start isEmpty. Operand 45711 states and 62046 transitions. [2024-12-02 12:02:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-12-02 12:02:26,723 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:26,723 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 11, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:26,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:02:26,723 INFO L396 AbstractCegarLoop]: === Iteration 18 === 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)] === [2024-12-02 12:02:26,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1601596225, now seen corresponding path program 1 times [2024-12-02 12:02:26,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:26,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270646071] [2024-12-02 12:02:26,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:26,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2024-12-02 12:02:28,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:28,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270646071] [2024-12-02 12:02:28,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270646071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:28,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:28,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:02:28,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059781745] [2024-12-02 12:02:28,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:28,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:02:28,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:28,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:02:28,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:02:28,852 INFO L87 Difference]: Start difference. First operand 45711 states and 62046 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 12:02:30,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:30,730 INFO L93 Difference]: Finished difference Result 45717 states and 62051 transitions. [2024-12-02 12:02:30,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:02:30,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 254 [2024-12-02 12:02:30,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:30,875 INFO L225 Difference]: With dead ends: 45717 [2024-12-02 12:02:30,876 INFO L226 Difference]: Without dead ends: 45713 [2024-12-02 12:02:30,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:02:30,896 INFO L435 NwaCegarLoop]: 2147 mSDtfsCounter, 2074 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 6423 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:30,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 6423 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:02:30,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45713 states. [2024-12-02 12:02:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45713 to 45713. [2024-12-02 12:02:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45713 states, 33406 states have (on average 1.239956893971143) internal successors, (41422), 33907 states have internal predecessors, (41422), 9589 states have call successors, (9589), 2749 states have call predecessors, (9589), 2715 states have return successors, (11036), 9324 states have call predecessors, (11036), 9586 states have call successors, (11036) [2024-12-02 12:02:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45713 states to 45713 states and 62047 transitions. [2024-12-02 12:02:33,509 INFO L78 Accepts]: Start accepts. Automaton has 45713 states and 62047 transitions. Word has length 254 [2024-12-02 12:02:33,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:33,509 INFO L471 AbstractCegarLoop]: Abstraction has 45713 states and 62047 transitions. [2024-12-02 12:02:33,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 12:02:33,509 INFO L276 IsEmpty]: Start isEmpty. Operand 45713 states and 62047 transitions. [2024-12-02 12:02:33,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-12-02 12:02:33,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:33,512 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 12, 11, 11, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:33,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:02:33,512 INFO L396 AbstractCegarLoop]: === Iteration 19 === 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)] === [2024-12-02 12:02:33,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:33,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1267700813, now seen corresponding path program 1 times [2024-12-02 12:02:33,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:33,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50203708] [2024-12-02 12:02:33,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:33,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-12-02 12:02:36,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:36,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50203708] [2024-12-02 12:02:36,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50203708] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:36,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:36,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:02:36,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737369859] [2024-12-02 12:02:36,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:36,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:02:36,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:36,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:02:36,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:02:36,009 INFO L87 Difference]: Start difference. First operand 45713 states and 62047 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:02:37,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:37,901 INFO L93 Difference]: Finished difference Result 45713 states and 62047 transitions. [2024-12-02 12:02:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:02:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 241 [2024-12-02 12:02:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:38,044 INFO L225 Difference]: With dead ends: 45713 [2024-12-02 12:02:38,044 INFO L226 Difference]: Without dead ends: 45366 [2024-12-02 12:02:38,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:02:38,067 INFO L435 NwaCegarLoop]: 2145 mSDtfsCounter, 2081 mSDsluCounter, 4274 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2081 SdHoareTripleChecker+Valid, 6419 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:38,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2081 Valid, 6419 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:02:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45366 states. [2024-12-02 12:02:40,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45366 to 45366. [2024-12-02 12:02:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45366 states, 33188 states have (on average 1.2390020489333493) internal successors, (41120), 33641 states have internal predecessors, (41120), 9475 states have call successors, (9475), 2733 states have call predecessors, (9475), 2701 states have return successors, (10925), 9259 states have call predecessors, (10925), 9475 states have call successors, (10925) [2024-12-02 12:02:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45366 states to 45366 states and 61520 transitions. [2024-12-02 12:02:40,382 INFO L78 Accepts]: Start accepts. Automaton has 45366 states and 61520 transitions. Word has length 241 [2024-12-02 12:02:40,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:40,382 INFO L471 AbstractCegarLoop]: Abstraction has 45366 states and 61520 transitions. [2024-12-02 12:02:40,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:02:40,382 INFO L276 IsEmpty]: Start isEmpty. Operand 45366 states and 61520 transitions. [2024-12-02 12:02:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 12:02:40,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:40,385 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 10, 10, 10, 10, 10, 10, 7, 7, 7, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:40,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:02:40,386 INFO L396 AbstractCegarLoop]: === Iteration 20 === 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)] === [2024-12-02 12:02:40,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:40,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1094522381, now seen corresponding path program 1 times [2024-12-02 12:02:40,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:40,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155474179] [2024-12-02 12:02:40,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:40,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:42,355 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2024-12-02 12:02:42,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:42,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155474179] [2024-12-02 12:02:42,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155474179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:42,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:42,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:02:42,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654787798] [2024-12-02 12:02:42,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:42,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:02:42,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:42,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:02:42,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:02:42,357 INFO L87 Difference]: Start difference. First operand 45366 states and 61520 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-12-02 12:02:46,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:02:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:02:49,294 INFO L93 Difference]: Finished difference Result 103907 states and 141054 transitions. [2024-12-02 12:02:49,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:02:49,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 278 [2024-12-02 12:02:49,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:02:49,500 INFO L225 Difference]: With dead ends: 103907 [2024-12-02 12:02:49,500 INFO L226 Difference]: Without dead ends: 58564 [2024-12-02 12:02:49,614 INFO L434 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 [2024-12-02 12:02:49,614 INFO L435 NwaCegarLoop]: 4051 mSDtfsCounter, 1954 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1954 SdHoareTripleChecker+Valid, 6103 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:02:49,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1954 Valid, 6103 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:02:49,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58564 states. [2024-12-02 12:02:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58564 to 58552. [2024-12-02 12:02:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58552 states, 42893 states have (on average 1.239456321544308) internal successors, (53164), 43472 states have internal predecessors, (53164), 12178 states have call successors, (12178), 3519 states have call predecessors, (12178), 3479 states have return successors, (14094), 11908 states have call predecessors, (14094), 12178 states have call successors, (14094) [2024-12-02 12:02:52,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58552 states to 58552 states and 79436 transitions. [2024-12-02 12:02:52,701 INFO L78 Accepts]: Start accepts. Automaton has 58552 states and 79436 transitions. Word has length 278 [2024-12-02 12:02:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:02:52,701 INFO L471 AbstractCegarLoop]: Abstraction has 58552 states and 79436 transitions. [2024-12-02 12:02:52,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-12-02 12:02:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 58552 states and 79436 transitions. [2024-12-02 12:02:52,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 12:02:52,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:02:52,705 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 10, 10, 10, 10, 10, 10, 7, 7, 7, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:02:52,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:02:52,705 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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)] === [2024-12-02 12:02:52,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:02:52,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1135197131, now seen corresponding path program 1 times [2024-12-02 12:02:52,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:02:52,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750149384] [2024-12-02 12:02:52,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:02:52,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:02:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:02:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2024-12-02 12:02:55,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:02:55,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750149384] [2024-12-02 12:02:55,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750149384] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:02:55,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:02:55,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:02:55,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232282931] [2024-12-02 12:02:55,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:02:55,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:02:55,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:02:55,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:02:55,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:02:55,642 INFO L87 Difference]: Start difference. First operand 58552 states and 79436 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-12-02 12:02:59,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:03:03,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:03,706 INFO L93 Difference]: Finished difference Result 131208 states and 177946 transitions. [2024-12-02 12:03:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:03:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 278 [2024-12-02 12:03:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:03,939 INFO L225 Difference]: With dead ends: 131208 [2024-12-02 12:03:03,940 INFO L226 Difference]: Without dead ends: 72750 [2024-12-02 12:03:04,073 INFO L434 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 [2024-12-02 12:03:04,074 INFO L435 NwaCegarLoop]: 3651 mSDtfsCounter, 1970 mSDsluCounter, 2039 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1970 SdHoareTripleChecker+Valid, 5690 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:03:04,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1970 Valid, 5690 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 52 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:03:04,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72750 states. [2024-12-02 12:03:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72750 to 72738. [2024-12-02 12:03:07,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72738 states, 53249 states have (on average 1.237657045202727) internal successors, (65904), 53978 states have internal predecessors, (65904), 15082 states have call successors, (15082), 4459 states have call predecessors, (15082), 4405 states have return successors, (17464), 14744 states have call predecessors, (17464), 15082 states have call successors, (17464) [2024-12-02 12:03:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72738 states to 72738 states and 98450 transitions. [2024-12-02 12:03:07,939 INFO L78 Accepts]: Start accepts. Automaton has 72738 states and 98450 transitions. Word has length 278 [2024-12-02 12:03:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:07,939 INFO L471 AbstractCegarLoop]: Abstraction has 72738 states and 98450 transitions. [2024-12-02 12:03:07,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-12-02 12:03:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 72738 states and 98450 transitions. [2024-12-02 12:03:07,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-12-02 12:03:07,943 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:07,943 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 11, 11, 11, 11, 11, 11, 9, 9, 9, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:03:07,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:03:07,944 INFO L396 AbstractCegarLoop]: === Iteration 22 === 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)] === [2024-12-02 12:03:07,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1703314101, now seen corresponding path program 1 times [2024-12-02 12:03:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:07,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554474854] [2024-12-02 12:03:07,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:07,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-12-02 12:03:09,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:09,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554474854] [2024-12-02 12:03:09,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554474854] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:09,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:03:09,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:03:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653579244] [2024-12-02 12:03:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:09,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:03:09,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:09,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:03:09,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:03:09,918 INFO L87 Difference]: Start difference. First operand 72738 states and 98450 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 12:03:13,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:03:19,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:19,056 INFO L93 Difference]: Finished difference Result 158846 states and 215178 transitions. [2024-12-02 12:03:19,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:03:19,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 349 [2024-12-02 12:03:19,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:19,438 INFO L225 Difference]: With dead ends: 158846 [2024-12-02 12:03:19,438 INFO L226 Difference]: Without dead ends: 86202 [2024-12-02 12:03:19,651 INFO L434 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 [2024-12-02 12:03:19,655 INFO L435 NwaCegarLoop]: 3566 mSDtfsCounter, 1971 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 5616 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:03:19,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 5616 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 12:03:19,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86202 states. [2024-12-02 12:03:23,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86202 to 86190. [2024-12-02 12:03:23,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86190 states, 63189 states have (on average 1.2380002848597067) internal successors, (78228), 64044 states have internal predecessors, (78228), 17804 states have call successors, (17804), 5257 states have call predecessors, (17804), 5195 states have return successors, (20652), 17412 states have call predecessors, (20652), 17804 states have call successors, (20652) [2024-12-02 12:03:24,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86190 states to 86190 states and 116684 transitions. [2024-12-02 12:03:24,125 INFO L78 Accepts]: Start accepts. Automaton has 86190 states and 116684 transitions. Word has length 349 [2024-12-02 12:03:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:24,125 INFO L471 AbstractCegarLoop]: Abstraction has 86190 states and 116684 transitions. [2024-12-02 12:03:24,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 12:03:24,125 INFO L276 IsEmpty]: Start isEmpty. Operand 86190 states and 116684 transitions. [2024-12-02 12:03:24,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-12-02 12:03:24,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:24,130 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 11, 11, 11, 11, 11, 11, 9, 9, 9, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:03:24,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:03:24,130 INFO L396 AbstractCegarLoop]: === Iteration 23 === 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)] === [2024-12-02 12:03:24,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988851, now seen corresponding path program 1 times [2024-12-02 12:03:24,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:24,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061715199] [2024-12-02 12:03:24,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:24,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-12-02 12:03:26,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:26,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061715199] [2024-12-02 12:03:26,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061715199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:26,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:03:26,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:03:26,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082126414] [2024-12-02 12:03:26,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:26,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:03:26,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:26,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:03:26,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:03:26,200 INFO L87 Difference]: Start difference. First operand 86190 states and 116684 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 12:03:30,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:03:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:35,078 INFO L93 Difference]: Finished difference Result 185558 states and 251406 transitions. [2024-12-02 12:03:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:03:35,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 349 [2024-12-02 12:03:35,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:35,457 INFO L225 Difference]: With dead ends: 185558 [2024-12-02 12:03:35,458 INFO L226 Difference]: Without dead ends: 99462 [2024-12-02 12:03:35,654 INFO L434 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 [2024-12-02 12:03:35,655 INFO L435 NwaCegarLoop]: 4053 mSDtfsCounter, 1958 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 6102 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:03:35,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 6102 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:03:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99462 states. [2024-12-02 12:03:40,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99462 to 99450. [2024-12-02 12:03:40,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99450 states, 72969 states have (on average 1.2383340870780744) internal successors, (90360), 73950 states have internal predecessors, (90360), 20510 states have call successors, (20510), 6039 states have call predecessors, (20510), 5969 states have return successors, (23824), 20064 states have call predecessors, (23824), 20510 states have call successors, (23824) [2024-12-02 12:03:40,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99450 states to 99450 states and 134694 transitions. [2024-12-02 12:03:40,979 INFO L78 Accepts]: Start accepts. Automaton has 99450 states and 134694 transitions. Word has length 349 [2024-12-02 12:03:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:03:40,979 INFO L471 AbstractCegarLoop]: Abstraction has 99450 states and 134694 transitions. [2024-12-02 12:03:40,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-12-02 12:03:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 99450 states and 134694 transitions. [2024-12-02 12:03:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-12-02 12:03:40,987 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:03:40,987 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 11, 11, 11, 11, 11, 11, 10, 10, 10, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:03:40,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:03:40,987 INFO L396 AbstractCegarLoop]: === Iteration 24 === 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)] === [2024-12-02 12:03:40,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:03:40,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1604438337, now seen corresponding path program 1 times [2024-12-02 12:03:40,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:03:40,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536216161] [2024-12-02 12:03:40,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:03:40,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:03:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:03:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 1267 trivial. 0 not checked. [2024-12-02 12:03:43,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:03:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536216161] [2024-12-02 12:03:43,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536216161] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:03:43,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:03:43,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:03:43,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756493145] [2024-12-02 12:03:43,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:03:43,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:03:43,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:03:43,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:03:43,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:03:43,703 INFO L87 Difference]: Start difference. First operand 99450 states and 134694 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 12:03:47,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:03:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:03:53,825 INFO L93 Difference]: Finished difference Result 212062 states and 287315 transitions. [2024-12-02 12:03:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:03:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) Word has length 386 [2024-12-02 12:03:53,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:03:54,279 INFO L225 Difference]: With dead ends: 212062 [2024-12-02 12:03:54,279 INFO L226 Difference]: Without dead ends: 112706 [2024-12-02 12:03:54,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:03:54,504 INFO L435 NwaCegarLoop]: 4003 mSDtfsCounter, 1956 mSDsluCounter, 10043 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 14046 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:03:54,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 14046 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-12-02 12:03:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112706 states. [2024-12-02 12:04:00,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112706 to 112662. [2024-12-02 12:04:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112662 states, 82685 states have (on average 1.2387736590675456) internal successors, (102428), 83792 states have internal predecessors, (102428), 23216 states have call successors, (23216), 6821 states have call predecessors, (23216), 6759 states have return successors, (27012), 22732 states have call predecessors, (27012), 23216 states have call successors, (27012) [2024-12-02 12:04:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112662 states to 112662 states and 152656 transitions. [2024-12-02 12:04:00,589 INFO L78 Accepts]: Start accepts. Automaton has 112662 states and 152656 transitions. Word has length 386 [2024-12-02 12:04:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:00,589 INFO L471 AbstractCegarLoop]: Abstraction has 112662 states and 152656 transitions. [2024-12-02 12:04:00,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 12:04:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 112662 states and 152656 transitions. [2024-12-02 12:04:00,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-12-02 12:04:00,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:00,594 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 11, 11, 11, 11, 11, 11, 10, 10, 10, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:00,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:04:00,594 INFO L396 AbstractCegarLoop]: === Iteration 25 === 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)] === [2024-12-02 12:04:00,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2054838195, now seen corresponding path program 1 times [2024-12-02 12:04:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:00,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386943693] [2024-12-02 12:04:00,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:00,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1338 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2024-12-02 12:04:03,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:03,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386943693] [2024-12-02 12:04:03,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386943693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:03,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:03,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:03,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560196998] [2024-12-02 12:04:03,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:03,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:03,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:03,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:03,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:03,025 INFO L87 Difference]: Start difference. First operand 112662 states and 152656 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-02 12:04:10,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:10,945 INFO L93 Difference]: Finished difference Result 257238 states and 347353 transitions. [2024-12-02 12:04:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:10,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 387 [2024-12-02 12:04:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:11,485 INFO L225 Difference]: With dead ends: 257238 [2024-12-02 12:04:11,485 INFO L226 Difference]: Without dead ends: 144670 [2024-12-02 12:04:11,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:11,732 INFO L435 NwaCegarLoop]: 2169 mSDtfsCounter, 2040 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 3903 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:11,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 3903 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 12:04:11,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144670 states. [2024-12-02 12:04:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144670 to 144650. [2024-12-02 12:04:20,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144650 states, 105955 states have (on average 1.238469161436459) internal successors, (131222), 107388 states have internal predecessors, (131222), 29836 states have call successors, (29836), 8925 states have call predecessors, (29836), 8857 states have return successors, (33666), 29256 states have call predecessors, (33666), 29836 states have call successors, (33666) [2024-12-02 12:04:20,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144650 states to 144650 states and 194724 transitions. [2024-12-02 12:04:21,060 INFO L78 Accepts]: Start accepts. Automaton has 144650 states and 194724 transitions. Word has length 387 [2024-12-02 12:04:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:21,060 INFO L471 AbstractCegarLoop]: Abstraction has 144650 states and 194724 transitions. [2024-12-02 12:04:21,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2024-12-02 12:04:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 144650 states and 194724 transitions. [2024-12-02 12:04:21,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2024-12-02 12:04:21,070 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:21,070 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 11, 11, 11, 11, 11, 11, 10, 10, 10, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:21,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:04:21,070 INFO L396 AbstractCegarLoop]: === Iteration 26 === 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)] === [2024-12-02 12:04:21,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:21,071 INFO L85 PathProgramCache]: Analyzing trace with hash 541518313, now seen corresponding path program 1 times [2024-12-02 12:04:21,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:21,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635567334] [2024-12-02 12:04:21,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:21,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 1374 trivial. 0 not checked. [2024-12-02 12:04:23,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:23,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635567334] [2024-12-02 12:04:23,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635567334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:23,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:23,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:04:23,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584480367] [2024-12-02 12:04:23,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:23,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:04:23,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:23,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:04:23,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:04:23,675 INFO L87 Difference]: Start difference. First operand 144650 states and 194724 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 12:04:27,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:04:38,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:04:38,768 INFO L93 Difference]: Finished difference Result 323458 states and 435501 transitions. [2024-12-02 12:04:38,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:04:38,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 406 [2024-12-02 12:04:38,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:04:39,403 INFO L225 Difference]: With dead ends: 323458 [2024-12-02 12:04:39,403 INFO L226 Difference]: Without dead ends: 178902 [2024-12-02 12:04:39,711 INFO L434 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 [2024-12-02 12:04:39,712 INFO L435 NwaCegarLoop]: 3820 mSDtfsCounter, 1759 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 5820 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:04:39,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 5820 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 122 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 12:04:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178902 states. [2024-12-02 12:04:51,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178902 to 178870. [2024-12-02 12:04:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178870 states, 131375 states have (on average 1.2348620361560418) internal successors, (162230), 133130 states have internal predecessors, (162230), 36516 states have call successors, (36516), 11051 states have call predecessors, (36516), 10977 states have return successors, (40380), 35844 states have call predecessors, (40380), 36516 states have call successors, (40380) [2024-12-02 12:04:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178870 states to 178870 states and 239126 transitions. [2024-12-02 12:04:52,422 INFO L78 Accepts]: Start accepts. Automaton has 178870 states and 239126 transitions. Word has length 406 [2024-12-02 12:04:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:04:52,422 INFO L471 AbstractCegarLoop]: Abstraction has 178870 states and 239126 transitions. [2024-12-02 12:04:52,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 12:04:52,422 INFO L276 IsEmpty]: Start isEmpty. Operand 178870 states and 239126 transitions. [2024-12-02 12:04:52,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-12-02 12:04:52,430 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:04:52,430 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 14, 14, 14, 14, 14, 14, 12, 12, 12, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:04:52,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 12:04:52,431 INFO L396 AbstractCegarLoop]: === Iteration 27 === 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)] === [2024-12-02 12:04:52,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:04:52,431 INFO L85 PathProgramCache]: Analyzing trace with hash 771541419, now seen corresponding path program 1 times [2024-12-02 12:04:52,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:04:52,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96999178] [2024-12-02 12:04:52,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:04:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:04:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:04:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1684 trivial. 0 not checked. [2024-12-02 12:04:55,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:04:55,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96999178] [2024-12-02 12:04:55,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96999178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:04:55,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:04:55,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:04:55,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486245481] [2024-12-02 12:04:55,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:04:55,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:04:55,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:04:55,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:04:55,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:04:55,075 INFO L87 Difference]: Start difference. First operand 178870 states and 239126 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 12:05:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:03,036 INFO L93 Difference]: Finished difference Result 178870 states and 239126 transitions. [2024-12-02 12:05:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:03,036 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 451 [2024-12-02 12:05:03,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:03,715 INFO L225 Difference]: With dead ends: 178870 [2024-12-02 12:05:03,715 INFO L226 Difference]: Without dead ends: 178868 [2024-12-02 12:05:03,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:03,774 INFO L435 NwaCegarLoop]: 2115 mSDtfsCounter, 1692 mSDsluCounter, 4606 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 6721 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:03,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 6721 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:05:03,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178868 states. [2024-12-02 12:05:15,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178868 to 178868. [2024-12-02 12:05:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178868 states, 131374 states have (on average 1.2332805577968244) internal successors, (162021), 133128 states have internal predecessors, (162021), 36516 states have call successors, (36516), 11051 states have call predecessors, (36516), 10977 states have return successors, (40380), 35844 states have call predecessors, (40380), 36516 states have call successors, (40380) [2024-12-02 12:05:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178868 states to 178868 states and 238917 transitions. [2024-12-02 12:05:16,076 INFO L78 Accepts]: Start accepts. Automaton has 178868 states and 238917 transitions. Word has length 451 [2024-12-02 12:05:16,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:16,077 INFO L471 AbstractCegarLoop]: Abstraction has 178868 states and 238917 transitions. [2024-12-02 12:05:16,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 12:05:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 178868 states and 238917 transitions. [2024-12-02 12:05:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-12-02 12:05:16,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:05:16,101 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 14, 14, 14, 14, 14, 14, 13, 13, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:16,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 12:05:16,102 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_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)] === [2024-12-02 12:05:16,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:05:16,102 INFO L85 PathProgramCache]: Analyzing trace with hash 460973953, now seen corresponding path program 1 times [2024-12-02 12:05:16,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:05:16,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961352888] [2024-12-02 12:05:16,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:05:16,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:05:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:05:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1735 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2024-12-02 12:05:18,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:05:18,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961352888] [2024-12-02 12:05:18,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961352888] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:05:18,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:05:18,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:05:18,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527088406] [2024-12-02 12:05:18,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:05:18,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:05:18,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:05:18,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:05:18,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:05:18,524 INFO L87 Difference]: Start difference. First operand 178868 states and 238917 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-12-02 12:05:22,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:05:31,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:05:31,954 INFO L93 Difference]: Finished difference Result 178868 states and 238917 transitions. [2024-12-02 12:05:31,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:05:31,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 492 [2024-12-02 12:05:31,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:05:32,097 INFO L225 Difference]: With dead ends: 178868 [2024-12-02 12:05:32,097 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:05:32,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:05:32,398 INFO L435 NwaCegarLoop]: 2146 mSDtfsCounter, 362 mSDsluCounter, 6074 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 8220 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:05:32,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 8220 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:05:32,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:05:32,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:05:32,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:05:32,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:05:32,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 492 [2024-12-02 12:05:32,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:05:32,506 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:05:32,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-12-02 12:05:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:05:32,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:05:32,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-12-02 12:05:32,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-12-02 12:05:32,512 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-12-02 12:05:32,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-12-02 12:05:32,518 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:05:32,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:08:41,341 WARN L286 SmtUtils]: Spent 10.13s on a formula simplification. DAG size of input: 274 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:08:50,374 WARN L286 SmtUtils]: Spent 7.32s on a formula simplification. DAG size of input: 332 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:09:08,241 WARN L286 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 399 DAG size of output: 27 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:09:16,902 WARN L286 SmtUtils]: Spent 7.12s on a formula simplification. DAG size of input: 332 DAG size of output: 43 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:09:26,911 WARN L286 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 274 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:09:38,607 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 332 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:09:49,100 WARN L286 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 274 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:10:06,154 WARN L286 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 380 DAG size of output: 45 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:10:16,936 WARN L286 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 398 DAG size of output: 26 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:10:44,674 WARN L286 SmtUtils]: Spent 25.17s on a formula simplification. DAG size of input: 597 DAG size of output: 38 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:11:23,688 WARN L286 SmtUtils]: Spent 38.79s on a formula simplification. DAG size of input: 1043 DAG size of output: 26 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:11:34,237 WARN L286 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 338 DAG size of output: 38 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:11:46,181 WARN L286 SmtUtils]: Spent 11.92s on a formula simplification. DAG size of input: 338 DAG size of output: 37 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:11:58,055 WARN L286 SmtUtils]: Spent 11.85s on a formula simplification. DAG size of input: 338 DAG size of output: 37 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:12:04,697 WARN L286 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 332 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:12:14,832 WARN L286 SmtUtils]: Spent 10.11s on a formula simplification. DAG size of input: 274 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:12:27,005 WARN L286 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 332 DAG size of output: 46 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:13:01,358 WARN L286 SmtUtils]: Spent 34.12s on a formula simplification. DAG size of input: 1013 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:13:12,575 WARN L286 SmtUtils]: Spent 11.20s on a formula simplification. DAG size of input: 290 DAG size of output: 43 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-12-02 12:13:26,518 WARN L286 SmtUtils]: Spent 10.97s on a formula simplification. DAG size of input: 290 DAG size of output: 43 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)