./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 0e0057cc 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_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/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_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-25 00:10:46,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:10:46,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:10:46,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:10:46,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:10:46,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:10:46,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:10:46,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:10:46,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:10:46,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:10:46,922 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:10:46,922 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:10:46,923 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:10:46,924 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:10:46,924 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:10:46,925 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:10:46,925 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:10:46,926 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:10:46,926 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:10:46,927 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:10:46,927 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:10:46,931 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:10:46,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:10:46,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:10:46,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:10:46,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:10:46,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:10:46,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:10:46,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:10:46,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:10:46,937 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:10:46,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:10:46,938 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:10:46,938 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:10:46,939 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:46,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:10:46,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:10:46,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:10:46,940 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:10:46,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:10:46,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:10:46,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:10:46,942 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:10:46,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:10:46,942 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_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2023-11-25 00:10:47,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:10:47,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:10:47,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:10:47,331 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:10:47,332 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:10:47,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-25 00:10:50,739 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:10:51,616 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:10:51,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-25 00:10:51,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/data/aad8734d1/8a2dbecf77954f41b8653abf3e25d4cb/FLAGe09969b27 [2023-11-25 00:10:51,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/data/aad8734d1/8a2dbecf77954f41b8653abf3e25d4cb [2023-11-25 00:10:51,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:10:51,731 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:10:51,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:10:51,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:10:51,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:10:51,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:10:51" (1/1) ... [2023-11-25 00:10:51,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cfceba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:51, skipping insertion in model container [2023-11-25 00:10:51,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:10:51" (1/1) ... [2023-11-25 00:10:52,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:10:55,361 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-25 00:10:55,377 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-25 00:10:55,380 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-25 00:10:55,382 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-25 00:10:55,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:10:55,478 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:10:55,641 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] [2023-11-25 00:10:55,643 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] [2023-11-25 00:10:55,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2023-11-25 00:10:55,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6043] [2023-11-25 00:10:55,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6491] [2023-11-25 00:10:55,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6514] [2023-11-25 00:10:55,945 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] [2023-11-25 00:10:55,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11172] [2023-11-25 00:10:55,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11175] [2023-11-25 00:10:55,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11178] [2023-11-25 00:10:55,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11181] [2023-11-25 00:10:55,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11260] [2023-11-25 00:10:55,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11268] [2023-11-25 00:10:55,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11323] [2023-11-25 00:10:55,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11330] [2023-11-25 00:10:55,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11494] [2023-11-25 00:10:56,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12171] [2023-11-25 00:10:56,046 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-25 00:10:56,047 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-25 00:10:56,048 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-25 00:10:56,049 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_87157de3-93d8-46b6-b401-62f2e052e47e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-25 00:10:56,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:10:56,322 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:56,322 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:56,322 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:56,323 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:10:56,330 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:10:56,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56 WrapperNode [2023-11-25 00:10:56,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:10:56,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:10:56,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:10:56,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:10:56,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:56,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:56,710 INFO L138 Inliner]: procedures = 451, calls = 2401, calls flagged for inlining = 232, calls inlined = 219, statements flattened = 6876 [2023-11-25 00:10:56,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:10:56,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:10:56,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:10:56,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:10:56,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:56,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:56,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:56,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:57,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:57,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:57,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:57,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:57,152 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:10:57,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:10:57,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:10:57,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:10:57,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (1/1) ... [2023-11-25 00:10:57,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:57,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:10:57,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:10:57,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87157de3-93d8-46b6-b401-62f2e052e47e/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:10:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2023-11-25 00:10:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2023-11-25 00:10:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-25 00:10:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2023-11-25 00:10:57,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2023-11-25 00:10:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:10:57,244 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:10:57,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:10:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:10:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:10:57,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:10:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-25 00:10:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-25 00:10:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-11-25 00:10:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-11-25 00:10:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-25 00:10:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-25 00:10:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:10:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:10:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-25 00:10:57,247 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-25 00:10:57,247 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-25 00:10:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-25 00:10:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-25 00:10:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-25 00:10:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-25 00:10:57,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-25 00:10:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-25 00:10:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-25 00:10:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2023-11-25 00:10:57,249 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2023-11-25 00:10:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:10:57,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:10:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-25 00:10:57,250 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-25 00:10:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2023-11-25 00:10:57,251 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2023-11-25 00:10:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:10:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:10:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-25 00:10:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-25 00:10:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:10:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-25 00:10:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-25 00:10:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2023-11-25 00:10:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2023-11-25 00:10:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:10:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:10:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alert [2023-11-25 00:10:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alert [2023-11-25 00:10:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:10:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-25 00:10:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-25 00:10:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:10:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:10:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:10:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-25 00:10:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-25 00:10:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:10:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:10:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:10:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2023-11-25 00:10:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2023-11-25 00:10:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:10:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:10:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2023-11-25 00:10:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2023-11-25 00:10:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-25 00:10:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-25 00:10:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:10:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:10:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:10:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:10:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:10:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:10:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:10:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-25 00:10:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-25 00:10:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2023-11-25 00:10:57,259 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2023-11-25 00:10:57,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:10:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:10:57,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:10:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:10:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-25 00:10:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-25 00:10:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-25 00:10:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:10:57,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:10:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2023-11-25 00:10:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2023-11-25 00:10:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2023-11-25 00:10:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2023-11-25 00:10:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:10:57,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:10:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2023-11-25 00:10:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2023-11-25 00:10:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-25 00:10:57,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-25 00:10:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2023-11-25 00:10:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2023-11-25 00:10:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-25 00:10:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-25 00:10:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2023-11-25 00:10:57,264 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2023-11-25 00:10:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-25 00:10:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-25 00:10:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2023-11-25 00:10:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2023-11-25 00:10:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-25 00:10:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-25 00:10:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2023-11-25 00:10:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2023-11-25 00:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-25 00:10:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-25 00:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:10:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2023-11-25 00:10:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2023-11-25 00:10:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:10:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:10:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2023-11-25 00:10:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2023-11-25 00:10:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:10:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:10:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2023-11-25 00:10:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2023-11-25 00:10:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-25 00:10:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-25 00:10:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:10:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:10:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-25 00:10:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-25 00:10:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-25 00:10:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-25 00:10:57,282 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-25 00:10:57,282 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-25 00:10:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:10:57,283 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:10:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-25 00:10:57,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-25 00:10:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:10:57,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:10:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2023-11-25 00:10:57,284 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2023-11-25 00:10:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:10:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-25 00:10:57,284 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-25 00:10:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:10:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-25 00:10:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-25 00:10:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:10:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-25 00:10:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-25 00:10:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:10:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:10:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:10:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:10:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-25 00:10:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-25 00:10:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-25 00:10:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-25 00:10:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2023-11-25 00:10:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2023-11-25 00:10:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-25 00:10:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-25 00:10:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-25 00:10:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-25 00:10:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:10:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:10:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:10:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:10:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:10:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2023-11-25 00:10:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2023-11-25 00:10:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2023-11-25 00:10:57,288 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2023-11-25 00:10:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-25 00:10:57,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-25 00:10:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2023-11-25 00:10:57,289 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2023-11-25 00:10:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:10:57,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:10:57,289 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2023-11-25 00:10:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2023-11-25 00:10:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2023-11-25 00:10:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2023-11-25 00:10:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2023-11-25 00:10:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2023-11-25 00:10:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:10:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2023-11-25 00:10:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2023-11-25 00:10:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:10:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:10:58,359 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:10:58,364 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:10:59,911 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:11:03,677 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:11:03,915 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:11:06,191 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:11:06,192 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:11:06,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:11:06 BoogieIcfgContainer [2023-11-25 00:11:06,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:11:06,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:11:06,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:11:06,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:11:06,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:10:51" (1/3) ... [2023-11-25 00:11:06,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c61da0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:11:06, skipping insertion in model container [2023-11-25 00:11:06,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:56" (2/3) ... [2023-11-25 00:11:06,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c61da0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:11:06, skipping insertion in model container [2023-11-25 00:11:06,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:11:06" (3/3) ... [2023-11-25 00:11:06,205 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-25 00:11:06,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:11:06,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:11:06,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:11:06,345 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;@370f66c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:11:06,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:11:06,359 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) [2023-11-25 00:11:06,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-25 00:11:06,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:06,418 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] [2023-11-25 00:11:06,420 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)] === [2023-11-25 00:11:06,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1317868986, now seen corresponding path program 1 times [2023-11-25 00:11:06,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:06,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042460776] [2023-11-25 00:11:06,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:06,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-25 00:11:07,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:07,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042460776] [2023-11-25 00:11:07,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042460776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:07,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:07,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:07,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807361716] [2023-11-25 00:11:07,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:07,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:07,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:07,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:07,970 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) [2023-11-25 00:11:11,187 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 [] [2023-11-25 00:11:13,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:15,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:16,638 INFO L93 Difference]: Finished difference Result 5023 states and 7614 transitions. [2023-11-25 00:11:16,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:11:16,642 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 [2023-11-25 00:11:16,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:16,708 INFO L225 Difference]: With dead ends: 5023 [2023-11-25 00:11:16,708 INFO L226 Difference]: Without dead ends: 3316 [2023-11-25 00:11:16,727 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 [2023-11-25 00:11:16,732 INFO L413 NwaCegarLoop]: 2327 mSDtfsCounter, 2327 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:16,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 4619 Invalid, 660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 654 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-11-25 00:11:16,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2023-11-25 00:11:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3290. [2023-11-25 00:11:17,146 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) [2023-11-25 00:11:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 4916 transitions. [2023-11-25 00:11:17,211 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 4916 transitions. Word has length 411 [2023-11-25 00:11:17,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:17,215 INFO L495 AbstractCegarLoop]: Abstraction has 3290 states and 4916 transitions. [2023-11-25 00:11:17,215 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) [2023-11-25 00:11:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 4916 transitions. [2023-11-25 00:11:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-25 00:11:17,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:17,232 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] [2023-11-25 00:11:17,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:11:17,233 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)] === [2023-11-25 00:11:17,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:17,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1529984823, now seen corresponding path program 1 times [2023-11-25 00:11:17,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:17,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599982490] [2023-11-25 00:11:17,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-25 00:11:18,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:18,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599982490] [2023-11-25 00:11:18,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599982490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:18,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:18,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:18,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378208750] [2023-11-25 00:11:18,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:18,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:18,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:18,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:18,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:18,106 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) [2023-11-25 00:11:20,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:23,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:24,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:25,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:27,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:27,885 INFO L93 Difference]: Finished difference Result 9625 states and 14381 transitions. [2023-11-25 00:11:27,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:11:27,886 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 [2023-11-25 00:11:27,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:27,942 INFO L225 Difference]: With dead ends: 9625 [2023-11-25 00:11:27,943 INFO L226 Difference]: Without dead ends: 6414 [2023-11-25 00:11:27,960 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 [2023-11-25 00:11:27,961 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2402 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:27,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 4530 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 650 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2023-11-25 00:11:27,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2023-11-25 00:11:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6410. [2023-11-25 00:11:28,362 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) [2023-11-25 00:11:28,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 9567 transitions. [2023-11-25 00:11:28,419 INFO L78 Accepts]: Start accepts. Automaton has 6410 states and 9567 transitions. Word has length 411 [2023-11-25 00:11:28,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:28,424 INFO L495 AbstractCegarLoop]: Abstraction has 6410 states and 9567 transitions. [2023-11-25 00:11:28,424 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) [2023-11-25 00:11:28,424 INFO L276 IsEmpty]: Start isEmpty. Operand 6410 states and 9567 transitions. [2023-11-25 00:11:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-25 00:11:28,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:28,436 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] [2023-11-25 00:11:28,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:11:28,436 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)] === [2023-11-25 00:11:28,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:28,447 INFO L85 PathProgramCache]: Analyzing trace with hash 875581104, now seen corresponding path program 1 times [2023-11-25 00:11:28,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:28,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973652084] [2023-11-25 00:11:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:29,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-25 00:11:29,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:29,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973652084] [2023-11-25 00:11:29,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973652084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:29,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:29,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:29,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898117591] [2023-11-25 00:11:29,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:29,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:29,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:29,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:29,014 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) [2023-11-25 00:11:31,840 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 []