./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 30e01a73 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire --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-30e01a7 [2023-11-23 21:16:22,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:22,709 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:22,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:22,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:22,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:22,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:22,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:22,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:22,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:22,779 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:22,780 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:22,781 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:22,783 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:22,783 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:22,784 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:22,784 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:22,784 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:22,785 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:22,785 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:22,786 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:22,787 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:22,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:22,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:22,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:22,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:22,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:22,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:22,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:22,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:22,793 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:22,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:22,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:22,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:22,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:22,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:22,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:22,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:22,795 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:22,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:22,796 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:22,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:22,796 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:22,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:22,797 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2023-11-23 21:16:23,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:23,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:23,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:23,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:23,241 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:23,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-23 21:16:27,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:28,020 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:28,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-23 21:16:28,118 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/data/45e0de7ed/6decf0089f784a88bc3e8b4f4e983063/FLAG4c9b23154 [2023-11-23 21:16:28,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/data/45e0de7ed/6decf0089f784a88bc3e8b4f4e983063 [2023-11-23 21:16:28,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:28,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:28,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:28,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:28,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:28,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:28" (1/1) ... [2023-11-23 21:16:28,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbbeebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:28, skipping insertion in model container [2023-11-23 21:16:28,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:28" (1/1) ... [2023-11-23 21:16:28,511 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:32,392 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-23 21:16:32,397 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-23 21:16:32,398 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-23 21:16:32,399 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-23 21:16:32,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:32,458 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:32,663 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] [2023-11-23 21:16:32,667 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] [2023-11-23 21:16:32,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2023-11-23 21:16:32,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6043] [2023-11-23 21:16:32,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6491] [2023-11-23 21:16:32,738 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6514] [2023-11-23 21:16:32,922 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] [2023-11-23 21:16:32,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11172] [2023-11-23 21:16:32,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11175] [2023-11-23 21:16:32,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11178] [2023-11-23 21:16:32,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11181] [2023-11-23 21:16:32,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11260] [2023-11-23 21:16:32,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11268] [2023-11-23 21:16:32,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11323] [2023-11-23 21:16:32,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11330] [2023-11-23 21:16:32,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11494] [2023-11-23 21:16:33,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12171] [2023-11-23 21:16:33,120 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-23 21:16:33,121 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-23 21:16:33,123 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-23 21:16:33,124 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_bedae49a-e715-4fd3-a1e1-e1e03e69068a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-23 21:16:33,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:33,547 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:33,547 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:33,548 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:33,548 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:33,559 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:33,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33 WrapperNode [2023-11-23 21:16:33,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:33,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:33,563 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:33,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:33,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:33,755 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,089 INFO L138 Inliner]: procedures = 451, calls = 2401, calls flagged for inlining = 232, calls inlined = 219, statements flattened = 6782 [2023-11-23 21:16:34,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:34,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:34,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:34,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:34,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,560 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:34,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:34,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:34,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:34,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (1/1) ... [2023-11-23 21:16:34,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:34,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:34,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:34,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedae49a-e715-4fd3-a1e1-e1e03e69068a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:34,709 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2023-11-23 21:16:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2023-11-23 21:16:34,710 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:16:34,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2023-11-23 21:16:34,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2023-11-23 21:16:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:16:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:16:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:16:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:16:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:16:34,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:16:34,712 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:16:34,712 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:16:34,712 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-11-23 21:16:34,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-11-23 21:16:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-23 21:16:34,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-23 21:16:34,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:16:34,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:16:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-23 21:16:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-23 21:16:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 21:16:34,714 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 21:16:34,714 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 21:16:34,715 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 21:16:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-23 21:16:34,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-23 21:16:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:16:34,715 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:16:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2023-11-23 21:16:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2023-11-23 21:16:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:16:34,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:16:34,716 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:16:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:16:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2023-11-23 21:16:34,717 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2023-11-23 21:16:34,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:16:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:16:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-23 21:16:34,718 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-23 21:16:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:34,718 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:16:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:16:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2023-11-23 21:16:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2023-11-23 21:16:34,719 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:16:34,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:16:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alert [2023-11-23 21:16:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alert [2023-11-23 21:16:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:16:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 21:16:34,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 21:16:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:16:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:16:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:16:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:16:34,721 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:16:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:16:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:16:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2023-11-23 21:16:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2023-11-23 21:16:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:16:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:16:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2023-11-23 21:16:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2023-11-23 21:16:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:16:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:16:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:16:34,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:16:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:34,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:16:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:16:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:16:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:16:34,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-23 21:16:34,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-23 21:16:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2023-11-23 21:16:34,726 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2023-11-23 21:16:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:16:34,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:16:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:16:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-23 21:16:34,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-23 21:16:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:16:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:16:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2023-11-23 21:16:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2023-11-23 21:16:34,728 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2023-11-23 21:16:34,728 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2023-11-23 21:16:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:16:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:16:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2023-11-23 21:16:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2023-11-23 21:16:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-23 21:16:34,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-23 21:16:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2023-11-23 21:16:34,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2023-11-23 21:16:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-23 21:16:34,730 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-23 21:16:34,730 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2023-11-23 21:16:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2023-11-23 21:16:34,731 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-23 21:16:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-23 21:16:34,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2023-11-23 21:16:34,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2023-11-23 21:16:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 21:16:34,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 21:16:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2023-11-23 21:16:34,732 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2023-11-23 21:16:34,732 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-23 21:16:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-23 21:16:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:34,733 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2023-11-23 21:16:34,733 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2023-11-23 21:16:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:16:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:16:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2023-11-23 21:16:34,734 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2023-11-23 21:16:34,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:16:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:16:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2023-11-23 21:16:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2023-11-23 21:16:34,735 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-23 21:16:34,735 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-23 21:16:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:16:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:16:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:16:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:16:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-23 21:16:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-23 21:16:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:16:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:16:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:16:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:16:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-23 21:16:34,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-23 21:16:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:16:34,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:16:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2023-11-23 21:16:34,739 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2023-11-23 21:16:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:16:34,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:16:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:16:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:16:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:16:34,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:16:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:16:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:16:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:16:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:16:34,741 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-23 21:16:34,741 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-23 21:16:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:16:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:16:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2023-11-23 21:16:34,742 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2023-11-23 21:16:34,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:16:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:16:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 21:16:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 21:16:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:16:34,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:16:34,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:16:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:16:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2023-11-23 21:16:34,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2023-11-23 21:16:34,744 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2023-11-23 21:16:34,745 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2023-11-23 21:16:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-23 21:16:34,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-23 21:16:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2023-11-23 21:16:34,745 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2023-11-23 21:16:34,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:16:34,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:16:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2023-11-23 21:16:34,746 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2023-11-23 21:16:34,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2023-11-23 21:16:34,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2023-11-23 21:16:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2023-11-23 21:16:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2023-11-23 21:16:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2023-11-23 21:16:34,747 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2023-11-23 21:16:34,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:16:34,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:16:35,866 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:35,877 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:38,333 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:16:43,071 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:16:43,224 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:45,747 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:45,748 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:45,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:45 BoogieIcfgContainer [2023-11-23 21:16:45,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:45,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:45,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:45,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:45,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:28" (1/3) ... [2023-11-23 21:16:45,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfe8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:45, skipping insertion in model container [2023-11-23 21:16:45,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:33" (2/3) ... [2023-11-23 21:16:45,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dfe8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:45, skipping insertion in model container [2023-11-23 21:16:45,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:45" (3/3) ... [2023-11-23 21:16:45,764 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-23 21:16:45,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:45,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:16:45,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:45,926 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;@2566cb7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:45,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:16:45,942 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) [2023-11-23 21:16:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-23 21:16:46,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:46,026 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] [2023-11-23 21:16:46,026 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)] === [2023-11-23 21:16:46,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:46,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1317868986, now seen corresponding path program 1 times [2023-11-23 21:16:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:46,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134009548] [2023-11-23 21:16:46,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:46,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:46,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-23 21:16:47,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:47,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134009548] [2023-11-23 21:16:47,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134009548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:47,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:47,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:47,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137083054] [2023-11-23 21:16:47,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:47,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:47,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:47,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:47,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:47,926 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) [2023-11-23 21:16:51,774 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 [] [2023-11-23 21:16:54,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:56,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:57,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:57,793 INFO L93 Difference]: Finished difference Result 5023 states and 7614 transitions. [2023-11-23 21:16:57,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:57,795 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 [2023-11-23 21:16:57,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:57,883 INFO L225 Difference]: With dead ends: 5023 [2023-11-23 21:16:57,884 INFO L226 Difference]: Without dead ends: 3316 [2023-11-23 21:16:57,904 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 [2023-11-23 21:16:57,908 INFO L413 NwaCegarLoop]: 2331 mSDtfsCounter, 2327 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 4623 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:57,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 4623 Invalid, 660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 655 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2023-11-23 21:16:57,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2023-11-23 21:16:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3290. [2023-11-23 21:16:58,226 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) [2023-11-23 21:16:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 4916 transitions. [2023-11-23 21:16:58,263 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 4916 transitions. Word has length 411 [2023-11-23 21:16:58,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:58,266 INFO L495 AbstractCegarLoop]: Abstraction has 3290 states and 4916 transitions. [2023-11-23 21:16:58,267 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) [2023-11-23 21:16:58,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 4916 transitions. [2023-11-23 21:16:58,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-23 21:16:58,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:58,279 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] [2023-11-23 21:16:58,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:58,280 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)] === [2023-11-23 21:16:58,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1529984823, now seen corresponding path program 1 times [2023-11-23 21:16:58,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:58,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260173470] [2023-11-23 21:16:58,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:58,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:59,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-23 21:16:59,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:59,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260173470] [2023-11-23 21:16:59,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260173470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:59,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:59,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:59,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146930970] [2023-11-23 21:16:59,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:59,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:59,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:59,093 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) [2023-11-23 21:17:02,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:04,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:06,332 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 [] [2023-11-23 21:17:08,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:08,877 INFO L93 Difference]: Finished difference Result 9625 states and 14381 transitions. [2023-11-23 21:17:08,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:17:08,878 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 [2023-11-23 21:17:08,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:08,947 INFO L225 Difference]: With dead ends: 9625 [2023-11-23 21:17:08,947 INFO L226 Difference]: Without dead ends: 6414 [2023-11-23 21:17:08,968 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 [2023-11-23 21:17:08,970 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2402 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:08,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 4530 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 649 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2023-11-23 21:17:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2023-11-23 21:17:09,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6410. [2023-11-23 21:17:09,514 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) [2023-11-23 21:17:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 9567 transitions. [2023-11-23 21:17:09,557 INFO L78 Accepts]: Start accepts. Automaton has 6410 states and 9567 transitions. Word has length 411 [2023-11-23 21:17:09,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:09,563 INFO L495 AbstractCegarLoop]: Abstraction has 6410 states and 9567 transitions. [2023-11-23 21:17:09,563 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) [2023-11-23 21:17:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 6410 states and 9567 transitions. [2023-11-23 21:17:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-23 21:17:09,575 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:09,575 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] [2023-11-23 21:17:09,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:09,576 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)] === [2023-11-23 21:17:09,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:09,576 INFO L85 PathProgramCache]: Analyzing trace with hash 875581104, now seen corresponding path program 1 times [2023-11-23 21:17:09,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:09,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000326034] [2023-11-23 21:17:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:09,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-23 21:17:10,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000326034] [2023-11-23 21:17:10,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000326034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:10,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:10,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:10,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161883588] [2023-11-23 21:17:10,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:10,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:10,085 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) [2023-11-23 21:17:12,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []