./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/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_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:58:54,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:58:54,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:58:54,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:58:54,506 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:58:54,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:58:54,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:58:54,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:58:54,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:58:54,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:58:54,540 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:58:54,541 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:58:54,541 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:58:54,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:58:54,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:58:54,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:58:54,545 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:58:54,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:58:54,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:58:54,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:58:54,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:58:54,549 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:58:54,550 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:58:54,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:58:54,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:58:54,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:54,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:58:54,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:58:54,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:58:54,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:58:54,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:58:54,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:58:54,557 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:58:54,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:58:54,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:58:54,559 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:58:54,559 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2023-11-06 22:58:54,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:54,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:54,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:54,884 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:54,886 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:54,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/../../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 [2023-11-06 22:58:58,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:59,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:59,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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 [2023-11-06 22:58:59,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/data/aff9f9c14/bc15836434bf4128b33210bb09093053/FLAGe485ffe01 [2023-11-06 22:58:59,215 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/data/aff9f9c14/bc15836434bf4128b33210bb09093053 [2023-11-06 22:58:59,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:59,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:59,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:59,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:59,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:59,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:59" (1/1) ... [2023-11-06 22:58:59,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3047a41f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:59, skipping insertion in model container [2023-11-06 22:58:59,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:59" (1/1) ... [2023-11-06 22:58:59,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:02,165 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,171 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,182 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,183 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,190 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:02,224 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:02,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6219] [2023-11-06 22:59:02,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6222] [2023-11-06 22:59:02,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6225] [2023-11-06 22:59:02,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6228] [2023-11-06 22:59:02,443 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] [2023-11-06 22:59:02,444 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] [2023-11-06 22:59:02,445 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] [2023-11-06 22:59:02,445 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] [2023-11-06 22:59:02,490 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] [2023-11-06 22:59:02,490 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] [2023-11-06 22:59:02,491 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] [2023-11-06 22:59:02,491 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] [2023-11-06 22:59:02,642 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,643 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,643 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,644 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/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] [2023-11-06 22:59:02,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:02,819 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:59:02,819 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:59:02,829 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:02,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02 WrapperNode [2023-11-06 22:59:02,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:02,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:02,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:02,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:02,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:02,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,156 INFO L138 Inliner]: procedures = 325, calls = 936, calls flagged for inlining = 152, calls inlined = 139, statements flattened = 2746 [2023-11-06 22:59:03,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:03,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:03,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:03,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:03,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,598 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:03,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:03,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:03,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:03,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (1/1) ... [2023-11-06 22:59:03,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:03,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:03,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:03,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3e21eb3-b06b-4d1a-b1dc-f0fc0ce78864/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-06 22:59:03,718 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-06 22:59:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-06 22:59:03,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 22:59:03,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 22:59:03,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-06 22:59:03,720 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-06 22:59:03,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-06 22:59:03,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-06 22:59:03,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-06 22:59:03,721 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-06 22:59:03,721 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2023-11-06 22:59:03,722 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2023-11-06 22:59:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-06 22:59:03,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-06 22:59:03,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:59:03,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:59:03,727 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2023-11-06 22:59:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2023-11-06 22:59:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-06 22:59:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-06 22:59:03,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2023-11-06 22:59:03,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2023-11-06 22:59:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2023-11-06 22:59:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2023-11-06 22:59:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-06 22:59:03,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-06 22:59:03,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-11-06 22:59:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-11-06 22:59:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:59:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-06 22:59:03,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-06 22:59:03,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:59:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-06 22:59:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-06 22:59:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-06 22:59:03,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-06 22:59:03,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2023-11-06 22:59:03,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2023-11-06 22:59:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:59:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:59:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 22:59:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 22:59:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-06 22:59:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-06 22:59:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-06 22:59:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-06 22:59:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-06 22:59:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-06 22:59:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-06 22:59:03,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-06 22:59:03,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-06 22:59:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-06 22:59:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2023-11-06 22:59:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2023-11-06 22:59:03,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-06 22:59:03,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-06 22:59:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:59:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2023-11-06 22:59:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2023-11-06 22:59:03,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-06 22:59:03,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-06 22:59:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 22:59:03,740 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 22:59:03,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:59:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2023-11-06 22:59:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2023-11-06 22:59:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-06 22:59:03,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-06 22:59:03,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:59:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:59:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-06 22:59:03,742 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-06 22:59:03,742 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2023-11-06 22:59:03,743 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2023-11-06 22:59:03,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-06 22:59:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-06 22:59:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2023-11-06 22:59:03,744 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2023-11-06 22:59:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:59:03,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-06 22:59:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-06 22:59:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-06 22:59:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-06 22:59:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-06 22:59:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-06 22:59:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:59:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-06 22:59:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-06 22:59:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:59:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-06 22:59:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-06 22:59:03,747 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-06 22:59:03,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:59:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 22:59:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-06 22:59:03,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-06 22:59:03,748 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-06 22:59:03,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-06 22:59:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-06 22:59:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-06 22:59:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-06 22:59:03,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-06 22:59:03,750 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2023-11-06 22:59:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2023-11-06 22:59:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-06 22:59:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-06 22:59:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2023-11-06 22:59:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2023-11-06 22:59:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2023-11-06 22:59:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2023-11-06 22:59:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2023-11-06 22:59:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2023-11-06 22:59:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:59:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-06 22:59:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-06 22:59:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:59:04,432 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:59:04,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:04,631 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 22:59:11,521 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-06 22:59:11,900 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:11,919 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:11,919 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:59:11,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:11 BoogieIcfgContainer [2023-11-06 22:59:11,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:11,927 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:11,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:11,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:11,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:59" (1/3) ... [2023-11-06 22:59:11,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bab6bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:11, skipping insertion in model container [2023-11-06 22:59:11,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:02" (2/3) ... [2023-11-06 22:59:11,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bab6bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:11, skipping insertion in model container [2023-11-06 22:59:11,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:11" (3/3) ... [2023-11-06 22:59:11,934 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2023-11-06 22:59:11,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:11,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-06 22:59:12,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:59:12,060 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@390ff275, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:59:12,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-06 22:59:12,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 1076 states, 770 states have (on average 1.2818181818181817) internal successors, (987), 780 states have internal predecessors, (987), 254 states have call successors, (254), 52 states have call predecessors, (254), 51 states have return successors, (245), 244 states have call predecessors, (245), 245 states have call successors, (245) [2023-11-06 22:59:12,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:59:12,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:12,103 INFO L195 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] [2023-11-06 22:59:12,104 INFO L420 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)] === [2023-11-06 22:59:12,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:12,111 INFO L85 PathProgramCache]: Analyzing trace with hash 895581716, now seen corresponding path program 1 times [2023-11-06 22:59:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:12,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610486265] [2023-11-06 22:59:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:59:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:59:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:59:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:59:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 22:59:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 22:59:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:59:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:59:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 22:59:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:59:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 22:59:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 22:59:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-11-06 22:59:13,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:13,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610486265] [2023-11-06 22:59:13,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610486265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:13,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:13,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:59:13,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016766627] [2023-11-06 22:59:13,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:13,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:59:13,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:13,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:59:13,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:59:13,879 INFO L87 Difference]: Start difference. First operand has 1076 states, 770 states have (on average 1.2818181818181817) internal successors, (987), 780 states have internal predecessors, (987), 254 states have call successors, (254), 52 states have call predecessors, (254), 51 states have return successors, (245), 244 states have call predecessors, (245), 245 states have call successors, (245) Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:59:18,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:20,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:24,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:26,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:29,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:31,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:33,027 INFO L93 Difference]: Finished difference Result 3818 states and 5392 transitions. [2023-11-06 22:59:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:59:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (17), 3 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 [2023-11-06 22:59:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:33,074 INFO L225 Difference]: With dead ends: 3818 [2023-11-06 22:59:33,074 INFO L226 Difference]: Without dead ends: 2742 [2023-11-06 22:59:33,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:59:33,090 INFO L413 NwaCegarLoop]: 1181 mSDtfsCounter, 3642 mSDsluCounter, 2916 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 1209 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4083 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 4052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1209 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:33,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4083 Valid, 4097 Invalid, 4052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1209 Valid, 2837 Invalid, 6 Unknown, 0 Unchecked, 18.3s Time] [2023-11-06 22:59:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2023-11-06 22:59:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2624. [2023-11-06 22:59:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 1880 states have (on average 1.248936170212766) internal successors, (2348), 1920 states have internal predecessors, (2348), 597 states have call successors, (597), 145 states have call predecessors, (597), 144 states have return successors, (593), 582 states have call predecessors, (593), 593 states have call successors, (593) [2023-11-06 22:59:33,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 3538 transitions. [2023-11-06 22:59:33,445 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 3538 transitions. Word has length 151 [2023-11-06 22:59:33,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:33,448 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 3538 transitions. [2023-11-06 22:59:33,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:59:33,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 3538 transitions. [2023-11-06 22:59:33,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:59:33,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:33,463 INFO L195 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] [2023-11-06 22:59:33,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:59:33,465 INFO L420 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)] === [2023-11-06 22:59:33,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash -292860392, now seen corresponding path program 1 times [2023-11-06 22:59:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959519997] [2023-11-06 22:59:33,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:33,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:59:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:59:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:59:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:59:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 22:59:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 22:59:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:59:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:59:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:33,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 22:59:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:59:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 22:59:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 22:59:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-06 22:59:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-11-06 22:59:34,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:34,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959519997] [2023-11-06 22:59:34,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959519997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:34,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:34,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:34,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072507144] [2023-11-06 22:59:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:34,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:34,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:34,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:34,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:34,213 INFO L87 Difference]: Start difference. First operand 2624 states and 3538 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:37,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:39,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:42,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:44,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:45,565 INFO L93 Difference]: Finished difference Result 7732 states and 10459 transitions. [2023-11-06 22:59:45,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:59:45,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 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 [2023-11-06 22:59:45,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:45,616 INFO L225 Difference]: With dead ends: 7732 [2023-11-06 22:59:45,616 INFO L226 Difference]: Without dead ends: 5135 [2023-11-06 22:59:45,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:45,633 INFO L413 NwaCegarLoop]: 1166 mSDtfsCounter, 1532 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 485 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:45,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 2899 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 900 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2023-11-06 22:59:45,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5135 states. [2023-11-06 22:59:46,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5135 to 5007. [2023-11-06 22:59:46,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5007 states, 3609 states have (on average 1.2482682183430314) internal successors, (4505), 3678 states have internal predecessors, (4505), 1111 states have call successors, (1111), 285 states have call predecessors, (1111), 284 states have return successors, (1107), 1091 states have call predecessors, (1107), 1107 states have call successors, (1107) [2023-11-06 22:59:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5007 states to 5007 states and 6723 transitions. [2023-11-06 22:59:46,100 INFO L78 Accepts]: Start accepts. Automaton has 5007 states and 6723 transitions. Word has length 151 [2023-11-06 22:59:46,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:46,101 INFO L495 AbstractCegarLoop]: Abstraction has 5007 states and 6723 transitions. [2023-11-06 22:59:46,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-06 22:59:46,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5007 states and 6723 transitions. [2023-11-06 22:59:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 22:59:46,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:46,106 INFO L195 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] [2023-11-06 22:59:46,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:59:46,106 INFO L420 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)] === [2023-11-06 22:59:46,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:46,107 INFO L85 PathProgramCache]: Analyzing trace with hash -784920834, now seen corresponding path program 1 times [2023-11-06 22:59:46,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:46,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245931590] [2023-11-06 22:59:46,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:46,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:59:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:59:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:59:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:59:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 22:59:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 22:59:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:59:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:59:46,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 22:59:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:59:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 22:59:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:46,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 22:59:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:46,488 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-11-06 22:59:46,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:46,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245931590] [2023-11-06 22:59:46,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245931590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:46,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:46,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:46,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628853857] [2023-11-06 22:59:46,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:46,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:46,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:46,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:46,495 INFO L87 Difference]: Start difference. First operand 5007 states and 6723 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:59:51,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:53,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:54,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:54,221 INFO L93 Difference]: Finished difference Result 12098 states and 16253 transitions. [2023-11-06 22:59:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:59:54,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 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 [2023-11-06 22:59:54,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:54,299 INFO L225 Difference]: With dead ends: 12098 [2023-11-06 22:59:54,299 INFO L226 Difference]: Without dead ends: 7118 [2023-11-06 22:59:54,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:54,335 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 1432 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 531 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:54,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 2916 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 911 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2023-11-06 22:59:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7118 states. [2023-11-06 22:59:54,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7118 to 6901. [2023-11-06 22:59:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 4939 states have (on average 1.2358777080380643) internal successors, (6104), 5052 states have internal predecessors, (6104), 1547 states have call successors, (1547), 413 states have call predecessors, (1547), 412 states have return successors, (1543), 1507 states have call predecessors, (1543), 1543 states have call successors, (1543) [2023-11-06 22:59:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 9194 transitions. [2023-11-06 22:59:54,940 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 9194 transitions. Word has length 157 [2023-11-06 22:59:54,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:54,942 INFO L495 AbstractCegarLoop]: Abstraction has 6901 states and 9194 transitions. [2023-11-06 22:59:54,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 22:59:54,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 9194 transitions. [2023-11-06 22:59:54,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-06 22:59:54,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:54,951 INFO L195 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] [2023-11-06 22:59:54,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:59:54,951 INFO L420 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)] === [2023-11-06 22:59:54,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:54,952 INFO L85 PathProgramCache]: Analyzing trace with hash -360216030, now seen corresponding path program 1 times [2023-11-06 22:59:54,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:54,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378568928] [2023-11-06 22:59:54,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:54,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:59:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:59:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 22:59:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 22:59:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 22:59:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 22:59:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:59:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 22:59:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 22:59:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 22:59:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 22:59:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:59:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 22:59:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-06 22:59:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-06 22:59:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-11-06 22:59:55,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:55,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378568928] [2023-11-06 22:59:55,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378568928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:55,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:55,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:55,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088617969] [2023-11-06 22:59:55,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:55,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:55,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:55,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:55,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:55,431 INFO L87 Difference]: Start difference. First operand 6901 states and 9194 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 22:59:58,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:01,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:04,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:06,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:06,791 INFO L93 Difference]: Finished difference Result 20267 states and 27415 transitions. [2023-11-06 23:00:06,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:00:06,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 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 [2023-11-06 23:00:06,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:06,927 INFO L225 Difference]: With dead ends: 20267 [2023-11-06 23:00:06,927 INFO L226 Difference]: Without dead ends: 13393 [2023-11-06 23:00:06,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:00:06,959 INFO L413 NwaCegarLoop]: 1190 mSDtfsCounter, 1603 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 567 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:06,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 2960 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 885 Invalid, 4 Unknown, 0 Unchecked, 10.5s Time] [2023-11-06 23:00:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13393 states. [2023-11-06 23:00:07,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13393 to 13158. [2023-11-06 23:00:08,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13158 states, 9414 states have (on average 1.2384746122795836) internal successors, (11659), 9665 states have internal predecessors, (11659), 2950 states have call successors, (2950), 783 states have call predecessors, (2950), 791 states have return successors, (3342), 2826 states have call predecessors, (3342), 2946 states have call successors, (3342) [2023-11-06 23:00:08,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13158 states to 13158 states and 17951 transitions. [2023-11-06 23:00:08,088 INFO L78 Accepts]: Start accepts. Automaton has 13158 states and 17951 transitions. Word has length 163 [2023-11-06 23:00:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:08,089 INFO L495 AbstractCegarLoop]: Abstraction has 13158 states and 17951 transitions. [2023-11-06 23:00:08,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 23:00:08,090 INFO L276 IsEmpty]: Start isEmpty. Operand 13158 states and 17951 transitions. [2023-11-06 23:00:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-06 23:00:08,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:08,102 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:08,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:00:08,103 INFO L420 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)] === [2023-11-06 23:00:08,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:08,103 INFO L85 PathProgramCache]: Analyzing trace with hash -18314247, now seen corresponding path program 1 times [2023-11-06 23:00:08,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:08,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961443043] [2023-11-06 23:00:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:08,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:00:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:00:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:00:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:00:08,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:00:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:00:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:00:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:00:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:00:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:00:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:00:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:00:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-06 23:00:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-06 23:00:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-06 23:00:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:08,822 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2023-11-06 23:00:08,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:08,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961443043] [2023-11-06 23:00:08,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961443043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:08,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:08,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:00:08,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573559865] [2023-11-06 23:00:08,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:08,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:00:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:00:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:00:08,826 INFO L87 Difference]: Start difference. First operand 13158 states and 17951 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 23:00:13,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:15,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:17,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:19,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:20,803 INFO L93 Difference]: Finished difference Result 32319 states and 43848 transitions. [2023-11-06 23:00:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:00:20,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (19), 3 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 193 [2023-11-06 23:00:20,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:20,921 INFO L225 Difference]: With dead ends: 32319 [2023-11-06 23:00:20,922 INFO L226 Difference]: Without dead ends: 19188 [2023-11-06 23:00:20,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:00:20,982 INFO L413 NwaCegarLoop]: 1429 mSDtfsCounter, 1480 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 979 mSolverCounterSat, 498 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 979 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:20,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1668 Valid, 3335 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 979 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2023-11-06 23:00:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19188 states. [2023-11-06 23:00:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19188 to 18863. [2023-11-06 23:00:22,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18863 states, 13513 states have (on average 1.2294087175312662) internal successors, (16613), 13901 states have internal predecessors, (16613), 4174 states have call successors, (4174), 1171 states have call predecessors, (4174), 1173 states have return successors, (4638), 3959 states have call predecessors, (4638), 4170 states have call successors, (4638) [2023-11-06 23:00:22,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18863 states to 18863 states and 25425 transitions. [2023-11-06 23:00:22,450 INFO L78 Accepts]: Start accepts. Automaton has 18863 states and 25425 transitions. Word has length 193 [2023-11-06 23:00:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:22,451 INFO L495 AbstractCegarLoop]: Abstraction has 18863 states and 25425 transitions. [2023-11-06 23:00:22,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-06 23:00:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 18863 states and 25425 transitions. [2023-11-06 23:00:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-06 23:00:22,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:22,629 INFO L195 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] [2023-11-06 23:00:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:00:22,630 INFO L420 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)] === [2023-11-06 23:00:22,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:22,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1126199103, now seen corresponding path program 1 times [2023-11-06 23:00:22,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:22,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491207143] [2023-11-06 23:00:22,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:22,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:00:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:00:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:00:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:00:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:00:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:00:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:00:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:00:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:00:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:00:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:00:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:00:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:00:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:00:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:00:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:00:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:00:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:00:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:00:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2023-11-06 23:00:23,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:23,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491207143] [2023-11-06 23:00:23,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491207143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:23,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:23,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:00:23,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534994755] [2023-11-06 23:00:23,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:23,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:00:23,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:23,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:00:23,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:00:23,280 INFO L87 Difference]: Start difference. First operand 18863 states and 25425 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-06 23:00:27,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:29,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:32,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:34,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:35,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:35,922 INFO L93 Difference]: Finished difference Result 53408 states and 72053 transitions. [2023-11-06 23:00:35,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:00:35,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 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 [2023-11-06 23:00:35,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:36,141 INFO L225 Difference]: With dead ends: 53408 [2023-11-06 23:00:36,142 INFO L226 Difference]: Without dead ends: 35551 [2023-11-06 23:00:36,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:00:36,203 INFO L413 NwaCegarLoop]: 2196 mSDtfsCounter, 1330 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 265 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 4610 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:36,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 4610 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1275 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2023-11-06 23:00:36,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35551 states. [2023-11-06 23:00:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35551 to 35015. [2023-11-06 23:00:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35015 states, 25193 states have (on average 1.2287937125391974) internal successors, (30957), 25829 states have internal predecessors, (30957), 7634 states have call successors, (7634), 2179 states have call predecessors, (7634), 2185 states have return successors, (8562), 7331 states have call predecessors, (8562), 7630 states have call successors, (8562) [2023-11-06 23:00:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35015 states to 35015 states and 47153 transitions. [2023-11-06 23:00:39,435 INFO L78 Accepts]: Start accepts. Automaton has 35015 states and 47153 transitions. Word has length 209 [2023-11-06 23:00:39,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:39,436 INFO L495 AbstractCegarLoop]: Abstraction has 35015 states and 47153 transitions. [2023-11-06 23:00:39,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-06 23:00:39,437 INFO L276 IsEmpty]: Start isEmpty. Operand 35015 states and 47153 transitions. [2023-11-06 23:00:39,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-06 23:00:39,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:39,442 INFO L195 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] [2023-11-06 23:00:39,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:00:39,443 INFO L420 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)] === [2023-11-06 23:00:39,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:39,443 INFO L85 PathProgramCache]: Analyzing trace with hash 797028931, now seen corresponding path program 1 times [2023-11-06 23:00:39,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:39,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398490036] [2023-11-06 23:00:39,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:39,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:39,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:00:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:39,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:00:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:00:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:00:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:00:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:00:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:00:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:00:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:00:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:00:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:00:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:00:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:00:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:00:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:00:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:00:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:00:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:00:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:00:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2023-11-06 23:00:40,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:40,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398490036] [2023-11-06 23:00:40,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398490036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:40,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:40,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:00:40,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213650598] [2023-11-06 23:00:40,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:40,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:40,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:40,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:40,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:00:40,667 INFO L87 Difference]: Start difference. First operand 35015 states and 47153 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 23:00:44,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:46,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:48,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:00:48,558 INFO L93 Difference]: Finished difference Result 35553 states and 47751 transitions. [2023-11-06 23:00:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:00:48,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 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 [2023-11-06 23:00:48,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:00:48,768 INFO L225 Difference]: With dead ends: 35553 [2023-11-06 23:00:48,768 INFO L226 Difference]: Without dead ends: 35551 [2023-11-06 23:00:48,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:00:48,789 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1384 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 352 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:00:48,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 3958 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 1241 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2023-11-06 23:00:48,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35551 states. [2023-11-06 23:00:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35551 to 35019. [2023-11-06 23:00:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35019 states, 25196 states have (on average 1.2287664708683919) internal successors, (30960), 25832 states have internal predecessors, (30960), 7634 states have call successors, (7634), 2180 states have call predecessors, (7634), 2186 states have return successors, (8562), 7331 states have call predecessors, (8562), 7630 states have call successors, (8562) [2023-11-06 23:00:51,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35019 states to 35019 states and 47156 transitions. [2023-11-06 23:00:51,534 INFO L78 Accepts]: Start accepts. Automaton has 35019 states and 47156 transitions. Word has length 209 [2023-11-06 23:00:51,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:00:51,536 INFO L495 AbstractCegarLoop]: Abstraction has 35019 states and 47156 transitions. [2023-11-06 23:00:51,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-06 23:00:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 35019 states and 47156 transitions. [2023-11-06 23:00:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-06 23:00:51,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:00:51,543 INFO L195 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] [2023-11-06 23:00:51,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:00:51,544 INFO L420 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)] === [2023-11-06 23:00:51,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:51,545 INFO L85 PathProgramCache]: Analyzing trace with hash -329090897, now seen corresponding path program 1 times [2023-11-06 23:00:51,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:51,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925833844] [2023-11-06 23:00:51,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:51,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:00:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:00:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:00:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:00:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:00:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:00:52,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:00:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:00:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:00:52,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:00:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:00:52,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:00:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:00:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:00:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:00:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:00:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:00:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:00:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:00:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:00:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-06 23:00:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:52,791 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2023-11-06 23:00:52,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:52,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925833844] [2023-11-06 23:00:52,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925833844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:52,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:52,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:00:52,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927303337] [2023-11-06 23:00:52,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:52,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:52,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:52,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:52,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:00:52,795 INFO L87 Difference]: Start difference. First operand 35019 states and 47156 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 23:00:57,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:00:59,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:01,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:01,445 INFO L93 Difference]: Finished difference Result 35557 states and 47754 transitions. [2023-11-06 23:01:01,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:01:01,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 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 [2023-11-06 23:01:01,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:01,627 INFO L225 Difference]: With dead ends: 35557 [2023-11-06 23:01:01,627 INFO L226 Difference]: Without dead ends: 35555 [2023-11-06 23:01:01,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:01:01,645 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1376 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 351 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:01,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3958 Invalid, 1597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1244 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-11-06 23:01:01,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35555 states. [2023-11-06 23:01:04,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35555 to 35023. [2023-11-06 23:01:04,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35023 states, 25199 states have (on average 1.2287392356839557) internal successors, (30963), 25835 states have internal predecessors, (30963), 7634 states have call successors, (7634), 2181 states have call predecessors, (7634), 2187 states have return successors, (8562), 7331 states have call predecessors, (8562), 7630 states have call successors, (8562) [2023-11-06 23:01:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35023 states to 35023 states and 47159 transitions. [2023-11-06 23:01:04,276 INFO L78 Accepts]: Start accepts. Automaton has 35023 states and 47159 transitions. Word has length 214 [2023-11-06 23:01:04,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:04,277 INFO L495 AbstractCegarLoop]: Abstraction has 35023 states and 47159 transitions. [2023-11-06 23:01:04,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 23:01:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 35023 states and 47159 transitions. [2023-11-06 23:01:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-11-06 23:01:04,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:04,286 INFO L195 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] [2023-11-06 23:01:04,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 23:01:04,287 INFO L420 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)] === [2023-11-06 23:01:04,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash -747246205, now seen corresponding path program 1 times [2023-11-06 23:01:04,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:04,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876796968] [2023-11-06 23:01:04,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:01:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:01:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:01:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:01:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:01:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:01:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:01:04,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:01:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:04,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:01:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:01:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:01:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:01:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:01:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:01:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:01:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:01:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:05,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:01:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:01:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:01:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-06 23:01:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 23:01:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2023-11-06 23:01:05,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:05,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876796968] [2023-11-06 23:01:05,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876796968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:05,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:05,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:01:05,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467592464] [2023-11-06 23:01:05,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:05,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:01:05,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:01:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:01:05,412 INFO L87 Difference]: Start difference. First operand 35023 states and 47159 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 23:01:09,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:11,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:13,962 INFO L93 Difference]: Finished difference Result 35561 states and 47757 transitions. [2023-11-06 23:01:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:01:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 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 [2023-11-06 23:01:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:14,102 INFO L225 Difference]: With dead ends: 35561 [2023-11-06 23:01:14,102 INFO L226 Difference]: Without dead ends: 35559 [2023-11-06 23:01:14,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:01:14,117 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1376 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 350 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:14,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3958 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 1244 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2023-11-06 23:01:14,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35559 states. [2023-11-06 23:01:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35559 to 35027. [2023-11-06 23:01:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35027 states, 25202 states have (on average 1.2287120069835726) internal successors, (30966), 25838 states have internal predecessors, (30966), 7634 states have call successors, (7634), 2182 states have call predecessors, (7634), 2188 states have return successors, (8562), 7331 states have call predecessors, (8562), 7630 states have call successors, (8562) [2023-11-06 23:01:16,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35027 states to 35027 states and 47162 transitions. [2023-11-06 23:01:16,990 INFO L78 Accepts]: Start accepts. Automaton has 35027 states and 47162 transitions. Word has length 219 [2023-11-06 23:01:16,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:16,991 INFO L495 AbstractCegarLoop]: Abstraction has 35027 states and 47162 transitions. [2023-11-06 23:01:16,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 23:01:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand 35027 states and 47162 transitions. [2023-11-06 23:01:17,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-11-06 23:01:17,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:17,008 INFO L195 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] [2023-11-06 23:01:17,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:01:17,009 INFO L420 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)] === [2023-11-06 23:01:17,010 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:17,010 INFO L85 PathProgramCache]: Analyzing trace with hash 676333551, now seen corresponding path program 1 times [2023-11-06 23:01:17,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:17,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115990010] [2023-11-06 23:01:17,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:17,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:01:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:01:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:01:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:01:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:01:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:01:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:01:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:01:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:01:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:01:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:01:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:01:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:01:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:01:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:01:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:01:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:01:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:01:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-06 23:01:17,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-06 23:01:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:01:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-06 23:01:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-06 23:01:17,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-06 23:01:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2023-11-06 23:01:17,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:17,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115990010] [2023-11-06 23:01:17,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115990010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:17,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:17,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:01:17,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551644808] [2023-11-06 23:01:17,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:17,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:01:17,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:17,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:01:17,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:01:17,666 INFO L87 Difference]: Start difference. First operand 35027 states and 47162 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-06 23:01:24,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:26,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:30,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:32,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:35,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:35,855 INFO L93 Difference]: Finished difference Result 86046 states and 115892 transitions. [2023-11-06 23:01:35,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 23:01:35,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 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 [2023-11-06 23:01:35,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:36,059 INFO L225 Difference]: With dead ends: 86046 [2023-11-06 23:01:36,059 INFO L226 Difference]: Without dead ends: 52025 [2023-11-06 23:01:36,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:01:36,144 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 1656 mSDsluCounter, 2674 mSDsCounter, 0 mSdLazyCounter, 3016 mSolverCounterSat, 766 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 766 IncrementalHoareTripleChecker+Valid, 3016 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:36,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 4166 Invalid, 3786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [766 Valid, 3016 Invalid, 4 Unknown, 0 Unchecked, 13.7s Time] [2023-11-06 23:01:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52025 states. [2023-11-06 23:01:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52025 to 51203. [2023-11-06 23:01:41,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51203 states, 36906 states have (on average 1.2283639516609766) internal successors, (45334), 37790 states have internal predecessors, (45334), 11094 states have call successors, (11094), 3190 states have call predecessors, (11094), 3200 states have return successors, (12486), 10703 states have call predecessors, (12486), 11090 states have call successors, (12486) [2023-11-06 23:01:41,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51203 states to 51203 states and 68914 transitions. [2023-11-06 23:01:41,326 INFO L78 Accepts]: Start accepts. Automaton has 51203 states and 68914 transitions. Word has length 235 [2023-11-06 23:01:41,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:41,327 INFO L495 AbstractCegarLoop]: Abstraction has 51203 states and 68914 transitions. [2023-11-06 23:01:41,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-06 23:01:41,328 INFO L276 IsEmpty]: Start isEmpty. Operand 51203 states and 68914 transitions. [2023-11-06 23:01:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-06 23:01:41,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:41,334 INFO L195 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] [2023-11-06 23:01:41,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 23:01:41,335 INFO L420 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)] === [2023-11-06 23:01:41,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:41,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1135905553, now seen corresponding path program 1 times [2023-11-06 23:01:41,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:41,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824469633] [2023-11-06 23:01:41,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:41,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:01:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:01:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:01:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:01:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:01:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:01:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:01:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:01:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:01:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:01:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:01:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:01:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:01:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:01:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:01:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:01:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:01:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:01:42,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:01:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-06 23:01:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 23:01:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-06 23:01:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2023-11-06 23:01:42,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:42,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824469633] [2023-11-06 23:01:42,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824469633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:42,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:42,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:01:42,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769549347] [2023-11-06 23:01:42,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:42,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:01:42,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:42,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:01:42,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:01:42,266 INFO L87 Difference]: Start difference. First operand 51203 states and 68914 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 23:01:46,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:48,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:01:52,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:01:52,711 INFO L93 Difference]: Finished difference Result 51997 states and 69792 transitions. [2023-11-06 23:01:52,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:01:52,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 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 [2023-11-06 23:01:52,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:01:52,901 INFO L225 Difference]: With dead ends: 51997 [2023-11-06 23:01:52,902 INFO L226 Difference]: Without dead ends: 51995 [2023-11-06 23:01:52,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:01:52,923 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1376 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 349 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:01:52,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3958 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1244 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2023-11-06 23:01:52,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51995 states. [2023-11-06 23:01:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51995 to 51207. [2023-11-06 23:01:57,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51207 states, 36909 states have (on average 1.228345390013276) internal successors, (45337), 37793 states have internal predecessors, (45337), 11094 states have call successors, (11094), 3191 states have call predecessors, (11094), 3201 states have return successors, (12486), 10703 states have call predecessors, (12486), 11090 states have call successors, (12486) [2023-11-06 23:01:57,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51207 states to 51207 states and 68917 transitions. [2023-11-06 23:01:57,801 INFO L78 Accepts]: Start accepts. Automaton has 51207 states and 68917 transitions. Word has length 224 [2023-11-06 23:01:57,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:01:57,802 INFO L495 AbstractCegarLoop]: Abstraction has 51207 states and 68917 transitions. [2023-11-06 23:01:57,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 23:01:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand 51207 states and 68917 transitions. [2023-11-06 23:01:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-11-06 23:01:57,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:01:57,808 INFO L195 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] [2023-11-06 23:01:57,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 23:01:57,809 INFO L420 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)] === [2023-11-06 23:01:57,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:01:57,809 INFO L85 PathProgramCache]: Analyzing trace with hash 658163907, now seen corresponding path program 1 times [2023-11-06 23:01:57,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:01:57,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833963459] [2023-11-06 23:01:57,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:01:57,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:01:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:01:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:01:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:01:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:01:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:01:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:01:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:01:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:01:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:01:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:01:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:01:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:01:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:01:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:01:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:01:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:01:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:01:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:01:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:01:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:01:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-06 23:01:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 23:01:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-06 23:01:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-06 23:01:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:01:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-11-06 23:01:58,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:01:58,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833963459] [2023-11-06 23:01:58,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833963459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:01:58,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:01:58,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:01:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878909712] [2023-11-06 23:01:58,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:01:58,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:01:58,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:01:58,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:01:58,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:01:58,528 INFO L87 Difference]: Start difference. First operand 51207 states and 68917 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-06 23:02:02,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:02:04,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:02:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:02:08,894 INFO L93 Difference]: Finished difference Result 52001 states and 69795 transitions. [2023-11-06 23:02:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:02:08,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 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 [2023-11-06 23:02:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:02:09,047 INFO L225 Difference]: With dead ends: 52001 [2023-11-06 23:02:09,048 INFO L226 Difference]: Without dead ends: 51999 [2023-11-06 23:02:09,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:02:09,065 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1376 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 348 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:02:09,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3958 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1244 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2023-11-06 23:02:09,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51999 states. [2023-11-06 23:02:13,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51999 to 51211. [2023-11-06 23:02:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51211 states, 36912 states have (on average 1.2283268313827482) internal successors, (45340), 37796 states have internal predecessors, (45340), 11094 states have call successors, (11094), 3192 states have call predecessors, (11094), 3202 states have return successors, (12486), 10703 states have call predecessors, (12486), 11090 states have call successors, (12486) [2023-11-06 23:02:13,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51211 states to 51211 states and 68920 transitions. [2023-11-06 23:02:13,740 INFO L78 Accepts]: Start accepts. Automaton has 51211 states and 68920 transitions. Word has length 229 [2023-11-06 23:02:13,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:02:13,741 INFO L495 AbstractCegarLoop]: Abstraction has 51211 states and 68920 transitions. [2023-11-06 23:02:13,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-06 23:02:13,741 INFO L276 IsEmpty]: Start isEmpty. Operand 51211 states and 68920 transitions. [2023-11-06 23:02:13,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-06 23:02:13,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:02:13,749 INFO L195 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] [2023-11-06 23:02:13,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 23:02:13,749 INFO L420 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)] === [2023-11-06 23:02:13,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:13,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1170723119, now seen corresponding path program 1 times [2023-11-06 23:02:13,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:13,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660266711] [2023-11-06 23:02:13,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:13,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:02:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:02:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:02:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:02:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:02:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:02:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:02:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:02:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:02:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:02:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:02:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:02:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:02:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:02:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:02:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:02:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:02:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:02:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:02:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-06 23:02:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 23:02:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-06 23:02:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-06 23:02:14,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-06 23:02:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2023-11-06 23:02:14,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:14,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660266711] [2023-11-06 23:02:14,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660266711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:14,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:14,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:02:14,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847436679] [2023-11-06 23:02:14,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:14,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:02:14,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:14,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:02:14,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:02:14,513 INFO L87 Difference]: Start difference. First operand 51211 states and 68920 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-06 23:02:18,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:02:20,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:02:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:02:25,245 INFO L93 Difference]: Finished difference Result 52005 states and 69798 transitions. [2023-11-06 23:02:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:02:25,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 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 [2023-11-06 23:02:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:02:25,418 INFO L225 Difference]: With dead ends: 52005 [2023-11-06 23:02:25,418 INFO L226 Difference]: Without dead ends: 52003 [2023-11-06 23:02:25,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-06 23:02:25,440 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 1376 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 347 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3958 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:02:25,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3958 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [347 Valid, 1244 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2023-11-06 23:02:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52003 states. [2023-11-06 23:02:30,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52003 to 51215. [2023-11-06 23:02:30,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51215 states, 36915 states have (on average 1.2283082757686576) internal successors, (45343), 37799 states have internal predecessors, (45343), 11094 states have call successors, (11094), 3193 states have call predecessors, (11094), 3203 states have return successors, (12486), 10703 states have call predecessors, (12486), 11090 states have call successors, (12486) [2023-11-06 23:02:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51215 states to 51215 states and 68923 transitions. [2023-11-06 23:02:30,683 INFO L78 Accepts]: Start accepts. Automaton has 51215 states and 68923 transitions. Word has length 234 [2023-11-06 23:02:30,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:02:30,684 INFO L495 AbstractCegarLoop]: Abstraction has 51215 states and 68923 transitions. [2023-11-06 23:02:30,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-06 23:02:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 51215 states and 68923 transitions. [2023-11-06 23:02:30,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-06 23:02:30,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:02:30,691 INFO L195 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] [2023-11-06 23:02:30,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 23:02:30,692 INFO L420 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)] === [2023-11-06 23:02:30,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:02:30,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1769454589, now seen corresponding path program 1 times [2023-11-06 23:02:30,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:02:30,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283384904] [2023-11-06 23:02:30,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:02:30,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:02:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 23:02:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 23:02:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-06 23:02:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-06 23:02:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-06 23:02:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-06 23:02:31,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 23:02:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-06 23:02:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-06 23:02:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-06 23:02:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-06 23:02:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 23:02:31,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-06 23:02:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-06 23:02:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 23:02:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-06 23:02:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 23:02:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-06 23:02:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 23:02:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-06 23:02:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-06 23:02:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-06 23:02:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-06 23:02:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-06 23:02:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-06 23:02:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2023-11-06 23:02:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:02:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2023-11-06 23:02:31,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:02:31,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283384904] [2023-11-06 23:02:31,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283384904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:02:31,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:02:31,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:02:31,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432830283] [2023-11-06 23:02:31,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:02:31,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:02:31,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:02:31,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:02:31,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:02:31,419 INFO L87 Difference]: Start difference. First operand 51215 states and 68923 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26)