./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-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC --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 737f509bd25a9e06ce0273f44396be18568d5a5ccd53141342830e40e0488456 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:05:16,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:05:16,200 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 02:05:16,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:05:16,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:05:16,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:05:16,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:05:16,251 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:05:16,251 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:05:16,252 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:05:16,252 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:05:16,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:05:16,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:05:16,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:05:16,253 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:05:16,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:05:16,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:05:16,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:05:16,255 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:05:16,255 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:05:16,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:05:16,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:05:16,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:05:16,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:05:16,257 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_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC 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 -> 737f509bd25a9e06ce0273f44396be18568d5a5ccd53141342830e40e0488456 [2024-11-24 02:05:16,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:05:16,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:05:16,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:05:16,610 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:05:16,611 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:05:16,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2024-11-24 02:05:19,666 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/data/fc797da3f/9c30c925f7434dec87c1e3df967def43/FLAG1d6a61140 [2024-11-24 02:05:20,420 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:05:20,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2024-11-24 02:05:20,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/data/fc797da3f/9c30c925f7434dec87c1e3df967def43/FLAG1d6a61140 [2024-11-24 02:05:20,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/data/fc797da3f/9c30c925f7434dec87c1e3df967def43 [2024-11-24 02:05:20,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:05:20,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:05:20,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:05:20,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:05:20,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:05:20,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:05:20" (1/1) ... [2024-11-24 02:05:20,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba70d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:20, skipping insertion in model container [2024-11-24 02:05:20,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:05:20" (1/1) ... [2024-11-24 02:05:20,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:05:22,803 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2024-11-24 02:05:22,807 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2024-11-24 02:05:22,807 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2024-11-24 02:05:22,808 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2024-11-24 02:05:22,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:05:22,849 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:05:23,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6219] [2024-11-24 02:05:23,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6222] [2024-11-24 02:05:23,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6225] [2024-11-24 02:05:23,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6228] [2024-11-24 02:05:23,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___0->state): : "memory", "cc"); [6657-6658] [2024-11-24 02:05:23,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [6664-6665] [2024-11-24 02:05:23,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [6671-6672] [2024-11-24 02:05:23,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [6678-6679] [2024-11-24 02:05:23,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___4->state): : "memory", "cc"); [6722-6723] [2024-11-24 02:05:23,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___5->state): : "memory", "cc"); [6729-6730] [2024-11-24 02:05:23,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___6->state): : "memory", "cc"); [6736-6737] [2024-11-24 02:05:23,077 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___7->state): : "memory", "cc"); [6743-6744] [2024-11-24 02:05:23,249 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2024-11-24 02:05:23,250 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2024-11-24 02:05:23,250 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2024-11-24 02:05:23,251 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_54c44da4-b861-4529-8a94-3623d4fa743b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2024-11-24 02:05:23,260 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:05:23,420 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:05:23,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23 WrapperNode [2024-11-24 02:05:23,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:05:23,424 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:05:23,424 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:05:23,424 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:05:23,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:23,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:23,682 INFO L138 Inliner]: procedures = 327, calls = 936, calls flagged for inlining = 153, calls inlined = 140, statements flattened = 2787 [2024-11-24 02:05:23,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:05:23,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:05:23,684 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:05:23,684 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:05:23,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:23,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:23,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,357 INFO L175 MemorySlicer]: Split 272 memory accesses to 11 slices as follows [6, 158, 5, 1, 5, 2, 14, 52, 25, 2, 2]. 58 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [6, 0, 0, 1, 0, 2, 0, 0, 0, 1, 0]. The 123 writes are split as follows [0, 26, 5, 0, 4, 0, 12, 52, 23, 0, 1]. [2024-11-24 02:05:24,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,433 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,448 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:05:24,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:05:24,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:05:24,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:05:24,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (1/1) ... [2024-11-24 02:05:24,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:05:24,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:05:24,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:05:24,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54c44da4-b861-4529-8a94-3623d4fa743b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:05:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-24 02:05:24,606 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-24 02:05:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-11-24 02:05:24,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 02:05:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 02:05:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 02:05:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 02:05:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 02:05:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 02:05:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 02:05:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 02:05:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 02:05:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-24 02:05:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-24 02:05:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-24 02:05:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-24 02:05:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2024-11-24 02:05:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2024-11-24 02:05:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2024-11-24 02:05:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2024-11-24 02:05:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 02:05:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 02:05:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2024-11-24 02:05:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2024-11-24 02:05:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-24 02:05:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-24 02:05:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2024-11-24 02:05:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2024-11-24 02:05:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2024-11-24 02:05:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2024-11-24 02:05:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-24 02:05:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-24 02:05:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2024-11-24 02:05:24,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2024-11-24 02:05:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2024-11-24 02:05:24,616 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 02:05:24,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-24 02:05:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-24 02:05:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2024-11-24 02:05:24,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 02:05:24,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2024-11-24 02:05:24,618 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 02:05:24,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 02:05:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 02:05:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 02:05:24,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 02:05:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-24 02:05:24,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 02:05:24,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2024-11-24 02:05:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-24 02:05:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 02:05:24,624 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 02:05:24,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2024-11-24 02:05:24,625 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2024-11-24 02:05:24,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 02:05:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-24 02:05:24,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-24 02:05:24,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-24 02:05:24,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-24 02:05:24,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2024-11-24 02:05:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-24 02:05:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2024-11-24 02:05:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2024-11-24 02:05:24,629 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 02:05:24,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2024-11-24 02:05:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 02:05:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-24 02:05:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-24 02:05:24,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:05:24,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:05:25,309 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:05:25,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:05:25,357 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 02:05:39,576 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-24 02:05:40,470 INFO L? ?]: Removed 1137 outVars from TransFormulas that were not future-live. [2024-11-24 02:05:40,471 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:05:40,514 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:05:40,514 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-24 02:05:40,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:05:40 BoogieIcfgContainer [2024-11-24 02:05:40,519 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:05:40,521 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:05:40,521 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:05:40,568 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:05:40,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:05:20" (1/3) ... [2024-11-24 02:05:40,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d709cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:05:40, skipping insertion in model container [2024-11-24 02:05:40,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:05:23" (2/3) ... [2024-11-24 02:05:40,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d709cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:05:40, skipping insertion in model container [2024-11-24 02:05:40,569 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:05:40" (3/3) ... [2024-11-24 02:05:40,571 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2024-11-24 02:05:40,588 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:05:40,591 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i that has 54 procedures, 1085 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2024-11-24 02:05:40,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:05:40,722 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;@139836f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:05:40,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-24 02:05:40,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 774 states have (on average 1.2803617571059431) internal successors, (991), 786 states have internal predecessors, (991), 256 states have call successors, (256), 53 states have call predecessors, (256), 52 states have return successors, (247), 246 states have call predecessors, (247), 247 states have call successors, (247) [2024-11-24 02:05:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:05:40,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:40,749 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:40,750 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:05:40,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:40,755 INFO L85 PathProgramCache]: Analyzing trace with hash 497895914, now seen corresponding path program 1 times [2024-11-24 02:05:40,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:40,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577399874] [2024-11-24 02:05:40,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:40,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-11-24 02:05:41,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:41,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577399874] [2024-11-24 02:05:41,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577399874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:41,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:41,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:05:41,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094996392] [2024-11-24 02:05:41,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:41,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:42,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:42,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:42,008 INFO L87 Difference]: Start difference. First operand has 1083 states, 774 states have (on average 1.2803617571059431) internal successors, (991), 786 states have internal predecessors, (991), 256 states have call successors, (256), 53 states have call predecessors, (256), 52 states have return successors, (247), 246 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:05:43,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:43,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:43,877 INFO L93 Difference]: Finished difference Result 2952 states and 4147 transitions. [2024-11-24 02:05:43,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:05:43,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2024-11-24 02:05:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:43,928 INFO L225 Difference]: With dead ends: 2952 [2024-11-24 02:05:43,928 INFO L226 Difference]: Without dead ends: 1880 [2024-11-24 02:05:43,943 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 [2024-11-24 02:05:43,946 INFO L435 NwaCegarLoop]: 1536 mSDtfsCounter, 1121 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:43,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 2885 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:05:43,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-11-24 02:05:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1853. [2024-11-24 02:05:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1335 states have (on average 1.247940074906367) internal successors, (1666), 1362 states have internal predecessors, (1666), 418 states have call successors, (418), 98 states have call predecessors, (418), 97 states have return successors, (414), 408 states have call predecessors, (414), 414 states have call successors, (414) [2024-11-24 02:05:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2498 transitions. [2024-11-24 02:05:44,216 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2498 transitions. Word has length 151 [2024-11-24 02:05:44,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:44,217 INFO L471 AbstractCegarLoop]: Abstraction has 1853 states and 2498 transitions. [2024-11-24 02:05:44,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:05:44,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2498 transitions. [2024-11-24 02:05:44,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 02:05:44,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:44,229 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:44,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:05:44,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:05:44,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash 444234944, now seen corresponding path program 1 times [2024-11-24 02:05:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:44,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747324579] [2024-11-24 02:05:44,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-11-24 02:05:44,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:44,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747324579] [2024-11-24 02:05:44,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747324579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:44,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:44,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:05:44,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210334866] [2024-11-24 02:05:44,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:44,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:44,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:44,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:44,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:44,760 INFO L87 Difference]: Start difference. First operand 1853 states and 2498 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 02:05:48,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:48,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:48,312 INFO L93 Difference]: Finished difference Result 5358 states and 7217 transitions. [2024-11-24 02:05:48,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:05:48,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2024-11-24 02:05:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:48,338 INFO L225 Difference]: With dead ends: 5358 [2024-11-24 02:05:48,338 INFO L226 Difference]: Without dead ends: 3532 [2024-11-24 02:05:48,347 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 [2024-11-24 02:05:48,348 INFO L435 NwaCegarLoop]: 1435 mSDtfsCounter, 1279 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:48,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 2798 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-24 02:05:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2024-11-24 02:05:48,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3528. [2024-11-24 02:05:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2562 states have (on average 1.2478532396565183) internal successors, (3197), 2608 states have internal predecessors, (3197), 772 states have call successors, (772), 192 states have call predecessors, (772), 191 states have return successors, (768), 759 states have call predecessors, (768), 768 states have call successors, (768) [2024-11-24 02:05:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4737 transitions. [2024-11-24 02:05:48,625 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4737 transitions. Word has length 151 [2024-11-24 02:05:48,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:48,626 INFO L471 AbstractCegarLoop]: Abstraction has 3528 states and 4737 transitions. [2024-11-24 02:05:48,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-24 02:05:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4737 transitions. [2024-11-24 02:05:48,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-24 02:05:48,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:48,632 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:48,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:05:48,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:05:48,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash 704418550, now seen corresponding path program 1 times [2024-11-24 02:05:48,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:48,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424699381] [2024-11-24 02:05:48,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:48,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:48,970 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-11-24 02:05:48,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424699381] [2024-11-24 02:05:48,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424699381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:48,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:48,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:05:48,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331639733] [2024-11-24 02:05:48,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:48,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:48,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:48,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:48,976 INFO L87 Difference]: Start difference. First operand 3528 states and 4737 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:05:50,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:50,377 INFO L93 Difference]: Finished difference Result 8391 states and 11240 transitions. [2024-11-24 02:05:50,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:05:50,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2024-11-24 02:05:50,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:50,488 INFO L225 Difference]: With dead ends: 8391 [2024-11-24 02:05:50,488 INFO L226 Difference]: Without dead ends: 4890 [2024-11-24 02:05:50,502 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 [2024-11-24 02:05:50,505 INFO L435 NwaCegarLoop]: 1437 mSDtfsCounter, 1195 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:50,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2818 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 02:05:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2024-11-24 02:05:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4861. [2024-11-24 02:05:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4861 states, 3507 states have (on average 1.2375249500998005) internal successors, (4340), 3582 states have internal predecessors, (4340), 1074 states have call successors, (1074), 278 states have call predecessors, (1074), 277 states have return successors, (1070), 1048 states have call predecessors, (1070), 1070 states have call successors, (1070) [2024-11-24 02:05:50,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4861 states to 4861 states and 6484 transitions. [2024-11-24 02:05:50,907 INFO L78 Accepts]: Start accepts. Automaton has 4861 states and 6484 transitions. Word has length 157 [2024-11-24 02:05:50,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:50,907 INFO L471 AbstractCegarLoop]: Abstraction has 4861 states and 6484 transitions. [2024-11-24 02:05:50,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 02:05:50,908 INFO L276 IsEmpty]: Start isEmpty. Operand 4861 states and 6484 transitions. [2024-11-24 02:05:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-24 02:05:50,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:50,912 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:05:50,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:05:50,913 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:05:50,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:50,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1254314602, now seen corresponding path program 1 times [2024-11-24 02:05:50,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:50,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136730306] [2024-11-24 02:05:50,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:50,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:51,300 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-11-24 02:05:51,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:51,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136730306] [2024-11-24 02:05:51,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136730306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:51,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:51,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:05:51,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990509189] [2024-11-24 02:05:51,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:51,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:51,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:51,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:51,303 INFO L87 Difference]: Start difference. First operand 4861 states and 6484 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 02:05:55,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:55,832 INFO L93 Difference]: Finished difference Result 14119 states and 19076 transitions. [2024-11-24 02:05:55,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:05:55,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 163 [2024-11-24 02:05:55,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:55,907 INFO L225 Difference]: With dead ends: 14119 [2024-11-24 02:05:55,907 INFO L226 Difference]: Without dead ends: 9285 [2024-11-24 02:05:55,930 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 [2024-11-24 02:05:55,932 INFO L435 NwaCegarLoop]: 1456 mSDtfsCounter, 1369 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:55,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 2834 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 02:05:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2024-11-24 02:05:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 9248. [2024-11-24 02:05:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9248 states, 6684 states have (on average 1.2410233393177739) internal successors, (8295), 6844 states have internal predecessors, (8295), 2042 states have call successors, (2042), 532 states have call predecessors, (2042), 519 states have return successors, (2224), 1955 states have call predecessors, (2224), 2038 states have call successors, (2224) [2024-11-24 02:05:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9248 states to 9248 states and 12561 transitions. [2024-11-24 02:05:56,536 INFO L78 Accepts]: Start accepts. Automaton has 9248 states and 12561 transitions. Word has length 163 [2024-11-24 02:05:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:05:56,537 INFO L471 AbstractCegarLoop]: Abstraction has 9248 states and 12561 transitions. [2024-11-24 02:05:56,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 02:05:56,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9248 states and 12561 transitions. [2024-11-24 02:05:56,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 02:05:56,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:05:56,549 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 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] [2024-11-24 02:05:56,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:05:56,549 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:05:56,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:05:56,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1586530598, now seen corresponding path program 1 times [2024-11-24 02:05:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:05:56,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808642896] [2024-11-24 02:05:56,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:05:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:05:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:05:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2024-11-24 02:05:56,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:05:56,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808642896] [2024-11-24 02:05:56,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808642896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:05:56,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:05:56,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:05:56,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435754930] [2024-11-24 02:05:56,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:05:56,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:05:56,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:05:56,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:05:56,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:05:56,860 INFO L87 Difference]: Start difference. First operand 9248 states and 12561 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-24 02:05:58,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:05:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:05:59,014 INFO L93 Difference]: Finished difference Result 22807 states and 30853 transitions. [2024-11-24 02:05:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:05:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 175 [2024-11-24 02:05:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:05:59,115 INFO L225 Difference]: With dead ends: 22807 [2024-11-24 02:05:59,115 INFO L226 Difference]: Without dead ends: 13586 [2024-11-24 02:05:59,148 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 [2024-11-24 02:05:59,149 INFO L435 NwaCegarLoop]: 1717 mSDtfsCounter, 1271 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 02:05:59,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 3092 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 02:05:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13586 states. [2024-11-24 02:05:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13586 to 13545. [2024-11-24 02:05:59,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13545 states, 9798 states have (on average 1.2308634415186772) internal successors, (12060), 10058 states have internal predecessors, (12060), 2948 states have call successors, (2948), 815 states have call predecessors, (2948), 796 states have return successors, (3173), 2797 states have call predecessors, (3173), 2944 states have call successors, (3173) [2024-11-24 02:05:59,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13545 states to 13545 states and 18181 transitions. [2024-11-24 02:06:00,012 INFO L78 Accepts]: Start accepts. Automaton has 13545 states and 18181 transitions. Word has length 175 [2024-11-24 02:06:00,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:00,013 INFO L471 AbstractCegarLoop]: Abstraction has 13545 states and 18181 transitions. [2024-11-24 02:06:00,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-11-24 02:06:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 13545 states and 18181 transitions. [2024-11-24 02:06:00,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-24 02:06:00,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:00,028 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2024-11-24 02:06:00,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:06:00,028 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)] === [2024-11-24 02:06:00,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2113638291, now seen corresponding path program 1 times [2024-11-24 02:06:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444209266] [2024-11-24 02:06:00,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:00,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-11-24 02:06:00,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:00,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444209266] [2024-11-24 02:06:00,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444209266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:00,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:00,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:06:00,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369841043] [2024-11-24 02:06:00,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:00,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:06:00,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:00,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:06:00,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:06:00,373 INFO L87 Difference]: Start difference. First operand 13545 states and 18181 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 02:06:04,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:05,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:05,288 INFO L93 Difference]: Finished difference Result 37494 states and 50480 transitions. [2024-11-24 02:06:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:06:05,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2024-11-24 02:06:05,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:05,448 INFO L225 Difference]: With dead ends: 37494 [2024-11-24 02:06:05,448 INFO L226 Difference]: Without dead ends: 24949 [2024-11-24 02:06:05,501 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 [2024-11-24 02:06:05,501 INFO L435 NwaCegarLoop]: 2671 mSDtfsCounter, 1252 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:05,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 4060 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 02:06:05,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24949 states. [2024-11-24 02:06:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24949 to 24945. [2024-11-24 02:06:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24945 states, 18134 states have (on average 1.231167971765744) internal successors, (22326), 18554 states have internal predecessors, (22326), 5344 states have call successors, (5344), 1499 states have call predecessors, (5344), 1464 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-11-24 02:06:06,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24945 states to 24945 states and 33465 transitions. [2024-11-24 02:06:06,872 INFO L78 Accepts]: Start accepts. Automaton has 24945 states and 33465 transitions. Word has length 209 [2024-11-24 02:06:06,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:06,873 INFO L471 AbstractCegarLoop]: Abstraction has 24945 states and 33465 transitions. [2024-11-24 02:06:06,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 02:06:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 24945 states and 33465 transitions. [2024-11-24 02:06:06,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-24 02:06:06,880 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:06,880 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2024-11-24 02:06:06,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 02:06:06,881 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:06,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:06,881 INFO L85 PathProgramCache]: Analyzing trace with hash -190410257, now seen corresponding path program 1 times [2024-11-24 02:06:06,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:06,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341380522] [2024-11-24 02:06:06,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-24 02:06:07,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:07,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341380522] [2024-11-24 02:06:07,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341380522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:07,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:07,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:07,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703266674] [2024-11-24 02:06:07,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:07,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:07,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:07,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:07,502 INFO L87 Difference]: Start difference. First operand 24945 states and 33465 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-24 02:06:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:08,825 INFO L93 Difference]: Finished difference Result 24951 states and 33470 transitions. [2024-11-24 02:06:08,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:08,826 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 209 [2024-11-24 02:06:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:09,001 INFO L225 Difference]: With dead ends: 24951 [2024-11-24 02:06:09,001 INFO L226 Difference]: Without dead ends: 24949 [2024-11-24 02:06:09,022 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 [2024-11-24 02:06:09,023 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 1365 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 4244 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 [2024-11-24 02:06:09,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 4244 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:06:09,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24949 states. [2024-11-24 02:06:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24949 to 24949. [2024-11-24 02:06:10,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24949 states, 18137 states have (on average 1.2311297347962729) internal successors, (22329), 18557 states have internal predecessors, (22329), 5344 states have call successors, (5344), 1500 states have call predecessors, (5344), 1465 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-11-24 02:06:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24949 states to 24949 states and 33468 transitions. [2024-11-24 02:06:10,549 INFO L78 Accepts]: Start accepts. Automaton has 24949 states and 33468 transitions. Word has length 209 [2024-11-24 02:06:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:10,553 INFO L471 AbstractCegarLoop]: Abstraction has 24949 states and 33468 transitions. [2024-11-24 02:06:10,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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) [2024-11-24 02:06:10,553 INFO L276 IsEmpty]: Start isEmpty. Operand 24949 states and 33468 transitions. [2024-11-24 02:06:10,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-24 02:06:10,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:10,558 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 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] [2024-11-24 02:06:10,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 02:06:10,559 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:10,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:10,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1832737645, now seen corresponding path program 1 times [2024-11-24 02:06:10,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:10,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288603965] [2024-11-24 02:06:10,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:10,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-11-24 02:06:11,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:11,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288603965] [2024-11-24 02:06:11,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288603965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:11,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:11,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:11,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465614830] [2024-11-24 02:06:11,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:11,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:11,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:11,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:11,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:11,156 INFO L87 Difference]: Start difference. First operand 24949 states and 33468 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:12,268 INFO L93 Difference]: Finished difference Result 24955 states and 33473 transitions. [2024-11-24 02:06:12,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 214 [2024-11-24 02:06:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:12,408 INFO L225 Difference]: With dead ends: 24955 [2024-11-24 02:06:12,409 INFO L226 Difference]: Without dead ends: 24953 [2024-11-24 02:06:12,424 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 [2024-11-24 02:06:12,424 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1361 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:12,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:06:12,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24953 states. [2024-11-24 02:06:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24953 to 24953. [2024-11-24 02:06:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24953 states, 18140 states have (on average 1.2310915104740905) internal successors, (22332), 18560 states have internal predecessors, (22332), 5344 states have call successors, (5344), 1501 states have call predecessors, (5344), 1466 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-11-24 02:06:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24953 states to 24953 states and 33471 transitions. [2024-11-24 02:06:14,229 INFO L78 Accepts]: Start accepts. Automaton has 24953 states and 33471 transitions. Word has length 214 [2024-11-24 02:06:14,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:14,230 INFO L471 AbstractCegarLoop]: Abstraction has 24953 states and 33471 transitions. [2024-11-24 02:06:14,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:14,230 INFO L276 IsEmpty]: Start isEmpty. Operand 24953 states and 33471 transitions. [2024-11-24 02:06:14,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-24 02:06:14,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:14,238 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 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] [2024-11-24 02:06:14,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 02:06:14,238 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:14,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:14,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1214519185, now seen corresponding path program 1 times [2024-11-24 02:06:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648678613] [2024-11-24 02:06:14,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:14,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-24 02:06:14,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:14,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648678613] [2024-11-24 02:06:14,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648678613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:14,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:14,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:14,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666822517] [2024-11-24 02:06:14,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:14,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:14,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:14,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:14,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:14,998 INFO L87 Difference]: Start difference. First operand 24953 states and 33471 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:16,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:16,335 INFO L93 Difference]: Finished difference Result 24959 states and 33476 transitions. [2024-11-24 02:06:16,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:16,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 219 [2024-11-24 02:06:16,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:16,470 INFO L225 Difference]: With dead ends: 24959 [2024-11-24 02:06:16,471 INFO L226 Difference]: Without dead ends: 24957 [2024-11-24 02:06:16,486 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 [2024-11-24 02:06:16,488 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1360 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:16,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:06:16,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24957 states. [2024-11-24 02:06:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24957 to 24957. [2024-11-24 02:06:17,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24957 states, 18143 states have (on average 1.2310532987929228) internal successors, (22335), 18563 states have internal predecessors, (22335), 5344 states have call successors, (5344), 1502 states have call predecessors, (5344), 1467 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-11-24 02:06:17,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24957 states to 24957 states and 33474 transitions. [2024-11-24 02:06:17,888 INFO L78 Accepts]: Start accepts. Automaton has 24957 states and 33474 transitions. Word has length 219 [2024-11-24 02:06:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:17,889 INFO L471 AbstractCegarLoop]: Abstraction has 24957 states and 33474 transitions. [2024-11-24 02:06:17,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:17,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24957 states and 33474 transitions. [2024-11-24 02:06:17,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-24 02:06:17,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:17,895 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:06:17,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 02:06:17,896 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:17,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:17,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1479106163, now seen corresponding path program 1 times [2024-11-24 02:06:17,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:17,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215700808] [2024-11-24 02:06:17,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:17,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-11-24 02:06:18,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:18,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215700808] [2024-11-24 02:06:18,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215700808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:18,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:18,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:06:18,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742573852] [2024-11-24 02:06:18,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:18,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:06:18,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:18,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:06:18,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:06:18,200 INFO L87 Difference]: Start difference. First operand 24957 states and 33474 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-24 02:06:21,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:06:23,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:23,802 INFO L93 Difference]: Finished difference Result 60364 states and 81135 transitions. [2024-11-24 02:06:23,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:06:23,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 235 [2024-11-24 02:06:23,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:24,063 INFO L225 Difference]: With dead ends: 60364 [2024-11-24 02:06:24,063 INFO L226 Difference]: Without dead ends: 36407 [2024-11-24 02:06:24,164 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 [2024-11-24 02:06:24,167 INFO L435 NwaCegarLoop]: 2672 mSDtfsCounter, 1284 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:24,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 4063 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-24 02:06:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36407 states. [2024-11-24 02:06:26,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36407 to 36373. [2024-11-24 02:06:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36373 states, 26495 states have (on average 1.2310624646159654) internal successors, (32617), 27075 states have internal predecessors, (32617), 7740 states have call successors, (7740), 2186 states have call predecessors, (7740), 2135 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-11-24 02:06:26,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36373 states to 36373 states and 48774 transitions. [2024-11-24 02:06:26,628 INFO L78 Accepts]: Start accepts. Automaton has 36373 states and 48774 transitions. Word has length 235 [2024-11-24 02:06:26,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:26,628 INFO L471 AbstractCegarLoop]: Abstraction has 36373 states and 48774 transitions. [2024-11-24 02:06:26,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-24 02:06:26,629 INFO L276 IsEmpty]: Start isEmpty. Operand 36373 states and 48774 transitions. [2024-11-24 02:06:26,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-24 02:06:26,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:26,636 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 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] [2024-11-24 02:06:26,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 02:06:26,636 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)] === [2024-11-24 02:06:26,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash -690731923, now seen corresponding path program 1 times [2024-11-24 02:06:26,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:26,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799424946] [2024-11-24 02:06:26,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:26,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2024-11-24 02:06:27,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:27,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799424946] [2024-11-24 02:06:27,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799424946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:27,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:27,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:27,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631269481] [2024-11-24 02:06:27,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:27,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:27,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:27,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:27,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:27,763 INFO L87 Difference]: Start difference. First operand 36373 states and 48774 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:29,554 INFO L93 Difference]: Finished difference Result 36379 states and 48779 transitions. [2024-11-24 02:06:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 224 [2024-11-24 02:06:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:29,813 INFO L225 Difference]: With dead ends: 36379 [2024-11-24 02:06:29,813 INFO L226 Difference]: Without dead ends: 36377 [2024-11-24 02:06:29,827 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 [2024-11-24 02:06:29,828 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1359 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 4248 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 [2024-11-24 02:06:29,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 02:06:29,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36377 states. [2024-11-24 02:06:31,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36377 to 36377. [2024-11-24 02:06:31,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36377 states, 26498 states have (on average 1.2310363046267643) internal successors, (32620), 27078 states have internal predecessors, (32620), 7740 states have call successors, (7740), 2187 states have call predecessors, (7740), 2136 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-11-24 02:06:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36377 states to 36377 states and 48777 transitions. [2024-11-24 02:06:31,549 INFO L78 Accepts]: Start accepts. Automaton has 36377 states and 48777 transitions. Word has length 224 [2024-11-24 02:06:31,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:31,550 INFO L471 AbstractCegarLoop]: Abstraction has 36377 states and 48777 transitions. [2024-11-24 02:06:31,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:31,550 INFO L276 IsEmpty]: Start isEmpty. Operand 36377 states and 48777 transitions. [2024-11-24 02:06:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-24 02:06:31,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:31,556 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 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] [2024-11-24 02:06:31,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 02:06:31,556 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:31,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1965608687, now seen corresponding path program 1 times [2024-11-24 02:06:31,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:31,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196716419] [2024-11-24 02:06:31,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:31,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2024-11-24 02:06:32,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:32,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196716419] [2024-11-24 02:06:32,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196716419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:32,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:32,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:32,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864205486] [2024-11-24 02:06:32,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:32,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:32,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:32,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:32,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:32,015 INFO L87 Difference]: Start difference. First operand 36377 states and 48777 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:33,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:33,797 INFO L93 Difference]: Finished difference Result 36383 states and 48782 transitions. [2024-11-24 02:06:33,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:33,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 229 [2024-11-24 02:06:33,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:34,034 INFO L225 Difference]: With dead ends: 36383 [2024-11-24 02:06:34,034 INFO L226 Difference]: Without dead ends: 36381 [2024-11-24 02:06:34,061 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 [2024-11-24 02:06:34,063 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1358 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:34,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:06:34,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36381 states. [2024-11-24 02:06:36,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36381 to 36381. [2024-11-24 02:06:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36381 states, 26501 states have (on average 1.2310101505603561) internal successors, (32623), 27081 states have internal predecessors, (32623), 7740 states have call successors, (7740), 2188 states have call predecessors, (7740), 2137 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-11-24 02:06:36,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36381 states to 36381 states and 48780 transitions. [2024-11-24 02:06:36,399 INFO L78 Accepts]: Start accepts. Automaton has 36381 states and 48780 transitions. Word has length 229 [2024-11-24 02:06:36,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:36,399 INFO L471 AbstractCegarLoop]: Abstraction has 36381 states and 48780 transitions. [2024-11-24 02:06:36,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 36381 states and 48780 transitions. [2024-11-24 02:06:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-24 02:06:36,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:36,406 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 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] [2024-11-24 02:06:36,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 02:06:36,406 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:36,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:36,407 INFO L85 PathProgramCache]: Analyzing trace with hash 101555565, now seen corresponding path program 1 times [2024-11-24 02:06:36,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:36,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639429357] [2024-11-24 02:06:36,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:36,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-11-24 02:06:36,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:36,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639429357] [2024-11-24 02:06:36,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639429357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:36,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:36,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:36,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172650480] [2024-11-24 02:06:36,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:36,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:36,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:36,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:36,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:36,822 INFO L87 Difference]: Start difference. First operand 36381 states and 48780 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:38,406 INFO L93 Difference]: Finished difference Result 36387 states and 48785 transitions. [2024-11-24 02:06:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:38,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 234 [2024-11-24 02:06:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:38,712 INFO L225 Difference]: With dead ends: 36387 [2024-11-24 02:06:38,712 INFO L226 Difference]: Without dead ends: 36385 [2024-11-24 02:06:38,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:06:38,726 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1357 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:38,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:06:38,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36385 states. [2024-11-24 02:06:40,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36385 to 36385. [2024-11-24 02:06:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36385 states, 26504 states have (on average 1.2309840024147298) internal successors, (32626), 27084 states have internal predecessors, (32626), 7740 states have call successors, (7740), 2189 states have call predecessors, (7740), 2138 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-11-24 02:06:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36385 states to 36385 states and 48783 transitions. [2024-11-24 02:06:41,034 INFO L78 Accepts]: Start accepts. Automaton has 36385 states and 48783 transitions. Word has length 234 [2024-11-24 02:06:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:41,035 INFO L471 AbstractCegarLoop]: Abstraction has 36385 states and 48783 transitions. [2024-11-24 02:06:41,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2024-11-24 02:06:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 36385 states and 48783 transitions. [2024-11-24 02:06:41,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-24 02:06:41,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:41,041 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 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] [2024-11-24 02:06:41,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 02:06:41,041 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:41,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:41,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1055308433, now seen corresponding path program 1 times [2024-11-24 02:06:41,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:41,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820017024] [2024-11-24 02:06:41,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:41,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2024-11-24 02:06:41,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:41,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820017024] [2024-11-24 02:06:41,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820017024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:41,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:41,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:41,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466762438] [2024-11-24 02:06:41,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:41,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:41,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:41,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:41,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:41,758 INFO L87 Difference]: Start difference. First operand 36385 states and 48783 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-24 02:06:43,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:06:43,657 INFO L93 Difference]: Finished difference Result 36907 states and 49218 transitions. [2024-11-24 02:06:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:06:43,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 239 [2024-11-24 02:06:43,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:06:43,844 INFO L225 Difference]: With dead ends: 36907 [2024-11-24 02:06:43,844 INFO L226 Difference]: Without dead ends: 36905 [2024-11-24 02:06:43,870 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 [2024-11-24 02:06:43,870 INFO L435 NwaCegarLoop]: 1420 mSDtfsCounter, 1308 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:06:43,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 4292 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:06:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36905 states. [2024-11-24 02:06:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36905 to 36905. [2024-11-24 02:06:46,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36905 states, 26937 states have (on average 1.227271039833686) internal successors, (33059), 27517 states have internal predecessors, (33059), 7740 states have call successors, (7740), 2276 states have call predecessors, (7740), 2225 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-11-24 02:06:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36905 states to 36905 states and 49216 transitions. [2024-11-24 02:06:46,355 INFO L78 Accepts]: Start accepts. Automaton has 36905 states and 49216 transitions. Word has length 239 [2024-11-24 02:06:46,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:06:46,355 INFO L471 AbstractCegarLoop]: Abstraction has 36905 states and 49216 transitions. [2024-11-24 02:06:46,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-24 02:06:46,356 INFO L276 IsEmpty]: Start isEmpty. Operand 36905 states and 49216 transitions. [2024-11-24 02:06:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-24 02:06:46,360 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:06:46,360 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 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] [2024-11-24 02:06:46,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 02:06:46,361 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-24 02:06:46,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:06:46,361 INFO L85 PathProgramCache]: Analyzing trace with hash -425892243, now seen corresponding path program 1 times [2024-11-24 02:06:46,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:06:46,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054052954] [2024-11-24 02:06:46,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:06:46,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:06:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:06:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2024-11-24 02:06:46,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:06:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054052954] [2024-11-24 02:06:46,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054052954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:06:46,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:06:46,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:06:46,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72831814] [2024-11-24 02:06:46,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:06:46,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:06:46,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:06:46,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:06:46,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:06:46,746 INFO L87 Difference]: Start difference. First operand 36905 states and 49216 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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)