./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:19,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:19,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:52:19,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:19,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:19,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:19,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:19,242 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:19,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:19,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:19,249 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:19,249 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:19,249 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:19,251 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:52:19,252 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:19,252 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:19,252 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:52:19,253 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:52:19,253 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:19,254 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:52:19,256 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:52:19,256 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:52:19,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:19,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:19,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:52:19,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:19,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:19,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:19,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:19,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:19,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:19,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:19,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:19,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:19,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:19,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:19,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:19,264 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:52:19,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:52:19,264 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:19,265 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:19,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:19,265 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2023-11-19 04:52:19,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:19,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:19,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:19,625 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:19,625 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:19,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-19 04:52:22,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:23,379 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:23,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-19 04:52:23,462 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/data/1a5bd3190/f0522b99c4a04e8a819edcf9c7f5af5e/FLAG2a9b0cd03 [2023-11-19 04:52:23,483 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/data/1a5bd3190/f0522b99c4a04e8a819edcf9c7f5af5e [2023-11-19 04:52:23,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:23,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:23,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:23,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:23,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:23,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:23" (1/1) ... [2023-11-19 04:52:23,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4593195d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:23, skipping insertion in model container [2023-11-19 04:52:23,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:23" (1/1) ... [2023-11-19 04:52:23,680 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:27,216 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-19 04:52:27,221 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-19 04:52:27,222 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-19 04:52:27,222 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-19 04:52:27,252 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:27,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:27,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5286] [2023-11-19 04:52:27,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5293] [2023-11-19 04:52:27,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2023-11-19 04:52:27,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6043] [2023-11-19 04:52:27,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6491] [2023-11-19 04:52:27,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6514] [2023-11-19 04:52:27,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [11140-11141] [2023-11-19 04:52:27,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11172] [2023-11-19 04:52:27,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11175] [2023-11-19 04:52:27,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11178] [2023-11-19 04:52:27,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11181] [2023-11-19 04:52:27,733 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11260] [2023-11-19 04:52:27,734 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11268] [2023-11-19 04:52:27,739 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11323] [2023-11-19 04:52:27,740 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11330] [2023-11-19 04:52:27,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11494] [2023-11-19 04:52:27,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12171] [2023-11-19 04:52:27,891 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-19 04:52:27,892 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-19 04:52:27,893 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-19 04:52:27,893 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_0dfb6208-72d8-41e7-83f3-ac06ed43c958/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-19 04:52:27,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:28,098 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:28,098 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:28,098 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:28,099 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:52:28,106 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:28,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28 WrapperNode [2023-11-19 04:52:28,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:28,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:28,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:28,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:28,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,544 INFO L138 Inliner]: procedures = 451, calls = 2401, calls flagged for inlining = 232, calls inlined = 219, statements flattened = 6782 [2023-11-19 04:52:28,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:28,546 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:28,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:28,547 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:28,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:28,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:28,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:28,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:28,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (1/1) ... [2023-11-19 04:52:28,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:28,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:28,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:28,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0dfb6208-72d8-41e7-83f3-ac06ed43c958/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2023-11-19 04:52:29,004 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2023-11-19 04:52:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 04:52:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2023-11-19 04:52:29,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2023-11-19 04:52:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:52:29,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:52:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:52:29,005 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:52:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:52:29,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:52:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:52:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:52:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-11-19 04:52:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-11-19 04:52:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-19 04:52:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-19 04:52:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:52:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:52:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-19 04:52:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-19 04:52:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 04:52:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 04:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 04:52:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 04:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-19 04:52:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-19 04:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:52:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:52:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2023-11-19 04:52:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2023-11-19 04:52:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:52:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:52:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 04:52:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 04:52:29,011 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2023-11-19 04:52:29,011 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2023-11-19 04:52:29,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:52:29,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:52:29,013 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-19 04:52:29,013 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-19 04:52:29,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:52:29,013 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:52:29,013 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:52:29,013 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2023-11-19 04:52:29,014 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2023-11-19 04:52:29,014 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:52:29,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:52:29,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alert [2023-11-19 04:52:29,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alert [2023-11-19 04:52:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:52:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-19 04:52:29,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-19 04:52:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:52:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:52:29,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:52:29,016 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:52:29,016 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:52:29,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:52:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:52:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:52:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2023-11-19 04:52:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2023-11-19 04:52:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:52:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:52:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2023-11-19 04:52:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2023-11-19 04:52:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 04:52:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 04:52:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:52:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:52:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:52:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:52:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:52:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:52:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:52:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 04:52:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 04:52:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2023-11-19 04:52:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2023-11-19 04:52:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:52:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:52:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:52:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:52:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 04:52:29,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 04:52:29,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:52:29,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:52:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2023-11-19 04:52:29,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2023-11-19 04:52:29,023 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2023-11-19 04:52:29,024 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2023-11-19 04:52:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:52:29,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:52:29,024 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2023-11-19 04:52:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2023-11-19 04:52:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 04:52:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 04:52:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2023-11-19 04:52:29,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2023-11-19 04:52:29,025 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 04:52:29,026 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 04:52:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2023-11-19 04:52:29,026 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2023-11-19 04:52:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-19 04:52:29,026 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-19 04:52:29,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2023-11-19 04:52:29,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2023-11-19 04:52:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 04:52:29,027 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 04:52:29,027 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2023-11-19 04:52:29,028 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2023-11-19 04:52:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-19 04:52:29,029 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-19 04:52:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:29,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:29,029 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2023-11-19 04:52:29,030 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2023-11-19 04:52:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:52:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:52:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2023-11-19 04:52:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2023-11-19 04:52:29,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:52:29,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:52:29,035 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2023-11-19 04:52:29,035 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2023-11-19 04:52:29,036 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-19 04:52:29,036 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-19 04:52:29,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:52:29,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:52:29,038 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 04:52:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 04:52:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-19 04:52:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-19 04:52:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:52:29,042 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:52:29,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:52:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:52:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-19 04:52:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-19 04:52:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:52:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:52:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2023-11-19 04:52:29,043 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2023-11-19 04:52:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:52:29,043 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:52:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:52:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:52:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 04:52:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 04:52:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:52:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 04:52:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 04:52:29,044 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:52:29,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:52:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:52:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:52:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-19 04:52:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-19 04:52:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:52:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:52:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2023-11-19 04:52:29,045 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2023-11-19 04:52:29,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:52:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:52:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-19 04:52:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-19 04:52:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:52:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:52:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:52:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:52:29,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:52:29,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2023-11-19 04:52:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2023-11-19 04:52:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2023-11-19 04:52:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2023-11-19 04:52:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-19 04:52:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-19 04:52:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2023-11-19 04:52:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2023-11-19 04:52:29,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:52:29,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:52:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2023-11-19 04:52:29,048 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2023-11-19 04:52:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2023-11-19 04:52:29,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2023-11-19 04:52:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2023-11-19 04:52:29,048 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2023-11-19 04:52:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:52:29,048 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2023-11-19 04:52:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2023-11-19 04:52:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:52:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:52:30,031 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:30,036 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:31,777 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:52:35,628 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:52:35,846 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:37,984 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:37,984 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:52:37,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:37 BoogieIcfgContainer [2023-11-19 04:52:37,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:38,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:38,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:38,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:38,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:23" (1/3) ... [2023-11-19 04:52:38,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7c5917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:38, skipping insertion in model container [2023-11-19 04:52:38,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:28" (2/3) ... [2023-11-19 04:52:38,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7c5917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:38, skipping insertion in model container [2023-11-19 04:52:38,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:37" (3/3) ... [2023-11-19 04:52:38,009 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-19 04:52:38,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:38,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:52:38,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:38,144 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c7d8b4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:38,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:52:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 1769 states, 1099 states have (on average 1.3375796178343948) internal successors, (1470), 1113 states have internal predecessors, (1470), 581 states have call successors, (581), 87 states have call predecessors, (581), 86 states have return successors, (573), 573 states have call predecessors, (573), 573 states have call successors, (573) [2023-11-19 04:52:38,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-19 04:52:38,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:38,203 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:38,204 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)] === [2023-11-19 04:52:38,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 983957525, now seen corresponding path program 1 times [2023-11-19 04:52:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:38,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289436509] [2023-11-19 04:52:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:38,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:39,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-19 04:52:39,658 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:39,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289436509] [2023-11-19 04:52:39,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289436509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:39,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:39,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:52:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002286062] [2023-11-19 04:52:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:39,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:39,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:39,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:39,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:39,710 INFO L87 Difference]: Start difference. First operand has 1769 states, 1099 states have (on average 1.3375796178343948) internal successors, (1470), 1113 states have internal predecessors, (1470), 581 states have call successors, (581), 87 states have call predecessors, (581), 86 states have return successors, (573), 573 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 04:52:42,810 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 [] [2023-11-19 04:52:45,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:48,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:48,240 INFO L93 Difference]: Finished difference Result 5023 states and 7614 transitions. [2023-11-19 04:52:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:48,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2023-11-19 04:52:48,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:48,288 INFO L225 Difference]: With dead ends: 5023 [2023-11-19 04:52:48,288 INFO L226 Difference]: Without dead ends: 3316 [2023-11-19 04:52:48,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:48,307 INFO L413 NwaCegarLoop]: 2329 mSDtfsCounter, 2327 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:48,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 4621 Invalid, 660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 655 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2023-11-19 04:52:48,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2023-11-19 04:52:48,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3290. [2023-11-19 04:52:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 2065 states have (on average 1.3389830508474576) internal successors, (2765), 2093 states have internal predecessors, (2765), 1055 states have call successors, (1055), 168 states have call predecessors, (1055), 167 states have return successors, (1096), 1047 states have call predecessors, (1096), 1051 states have call successors, (1096) [2023-11-19 04:52:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 4916 transitions. [2023-11-19 04:52:48,743 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 4916 transitions. Word has length 411 [2023-11-19 04:52:48,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:48,746 INFO L495 AbstractCegarLoop]: Abstraction has 3290 states and 4916 transitions. [2023-11-19 04:52:48,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 04:52:48,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 4916 transitions. [2023-11-19 04:52:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-19 04:52:48,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:48,760 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:48,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:52:48,761 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)] === [2023-11-19 04:52:48,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1070207353, now seen corresponding path program 1 times [2023-11-19 04:52:48,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:48,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550083901] [2023-11-19 04:52:48,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:48,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-19 04:52:49,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:49,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550083901] [2023-11-19 04:52:49,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550083901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:49,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:49,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:52:49,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797802970] [2023-11-19 04:52:49,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:49,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:49,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:49,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:49,427 INFO L87 Difference]: Start difference. First operand 3290 states and 4916 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 04:52:51,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:53,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:52:54,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:52:54,594 INFO L93 Difference]: Finished difference Result 9625 states and 14381 transitions. [2023-11-19 04:52:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:52:54,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2023-11-19 04:52:54,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:52:54,660 INFO L225 Difference]: With dead ends: 9625 [2023-11-19 04:52:54,660 INFO L226 Difference]: Without dead ends: 6414 [2023-11-19 04:52:54,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:54,687 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2402 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:52:54,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 4530 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-19 04:52:54,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2023-11-19 04:52:55,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6410. [2023-11-19 04:52:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6410 states, 4054 states have (on average 1.3411445485939812) internal successors, (5437), 4102 states have internal predecessors, (5437), 2022 states have call successors, (2022), 332 states have call predecessors, (2022), 331 states have return successors, (2108), 2013 states have call predecessors, (2108), 2018 states have call successors, (2108) [2023-11-19 04:52:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 9567 transitions. [2023-11-19 04:52:55,166 INFO L78 Accepts]: Start accepts. Automaton has 6410 states and 9567 transitions. Word has length 411 [2023-11-19 04:52:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:52:55,168 INFO L495 AbstractCegarLoop]: Abstraction has 6410 states and 9567 transitions. [2023-11-19 04:52:55,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 04:52:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6410 states and 9567 transitions. [2023-11-19 04:52:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-19 04:52:55,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:55,180 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:55,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:52:55,181 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)] === [2023-11-19 04:52:55,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:55,181 INFO L85 PathProgramCache]: Analyzing trace with hash -686091709, now seen corresponding path program 1 times [2023-11-19 04:52:55,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:55,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67566300] [2023-11-19 04:52:55,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:55,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:52:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:52:55,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-19 04:52:55,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:52:55,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67566300] [2023-11-19 04:52:55,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67566300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:52:55,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:52:55,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:52:55,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37296038] [2023-11-19 04:52:55,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:52:55,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:52:55,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:52:55,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:52:55,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:52:55,736 INFO L87 Difference]: Start difference. First operand 6410 states and 9567 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 04:52:57,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:01,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:02,071 INFO L93 Difference]: Finished difference Result 18756 states and 28285 transitions. [2023-11-19 04:53:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:53:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 418 [2023-11-19 04:53:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:02,197 INFO L225 Difference]: With dead ends: 18756 [2023-11-19 04:53:02,197 INFO L226 Difference]: Without dead ends: 12425 [2023-11-19 04:53:02,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:02,241 INFO L413 NwaCegarLoop]: 2284 mSDtfsCounter, 2373 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:02,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2373 Valid, 4535 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2023-11-19 04:53:02,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2023-11-19 04:53:03,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 12392. [2023-11-19 04:53:03,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12392 states, 7838 states have (on average 1.340520540954325) internal successors, (10507), 7940 states have internal predecessors, (10507), 3898 states have call successors, (3898), 658 states have call predecessors, (3898), 653 states have return successors, (4370), 3865 states have call predecessors, (4370), 3894 states have call successors, (4370) [2023-11-19 04:53:03,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12392 states to 12392 states and 18775 transitions. [2023-11-19 04:53:03,310 INFO L78 Accepts]: Start accepts. Automaton has 12392 states and 18775 transitions. Word has length 418 [2023-11-19 04:53:03,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:03,312 INFO L495 AbstractCegarLoop]: Abstraction has 12392 states and 18775 transitions. [2023-11-19 04:53:03,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-19 04:53:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 12392 states and 18775 transitions. [2023-11-19 04:53:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2023-11-19 04:53:03,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:03,328 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:03,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:53:03,328 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)] === [2023-11-19 04:53:03,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:03,329 INFO L85 PathProgramCache]: Analyzing trace with hash -761204234, now seen corresponding path program 1 times [2023-11-19 04:53:03,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:03,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314933015] [2023-11-19 04:53:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:03,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-19 04:53:03,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:03,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314933015] [2023-11-19 04:53:03,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314933015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:03,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:03,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:53:03,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607749115] [2023-11-19 04:53:03,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:03,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:53:03,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:03,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:53:03,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:03,900 INFO L87 Difference]: Start difference. First operand 12392 states and 18775 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-11-19 04:53:06,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []