./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 527bcce2 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:54:09,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:54:10,017 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:54:10,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:54:10,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:54:10,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:54:10,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:54:10,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:54:10,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:54:10,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:54:10,071 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:54:10,072 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:54:10,072 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:54:10,074 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:54:10,075 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:54:10,075 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:54:10,076 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:54:10,076 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:54:10,077 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:54:10,078 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:54:10,078 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:54:10,079 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:54:10,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:54:10,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:54:10,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:54:10,082 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:54:10,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:54:10,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:54:10,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:54:10,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:54:10,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:54:10,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:54:10,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:54:10,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:54:10,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:10,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:54:10,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:54:10,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:54:10,088 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:54:10,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:54:10,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:54:10,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:54:10,090 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:54:10,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:54:10,091 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2023-11-21 19:54:10,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:54:10,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:54:10,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:54:10,451 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:54:10,452 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:54:10,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-21 19:54:13,687 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:54:14,426 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:54:14,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-21 19:54:14,488 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/data/778b3a271/43392686c8c1437597fd1eaf8ea5ffca/FLAG0ddab0bc8 [2023-11-21 19:54:14,507 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/data/778b3a271/43392686c8c1437597fd1eaf8ea5ffca [2023-11-21 19:54:14,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:54:14,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:54:14,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:14,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:54:14,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:54:14,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:14" (1/1) ... [2023-11-21 19:54:14,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c1ee6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:14, skipping insertion in model container [2023-11-21 19:54:14,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:14" (1/1) ... [2023-11-21 19:54:14,725 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:54:17,840 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-21 19:54:17,844 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-21 19:54:17,845 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-21 19:54:17,851 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-21 19:54:17,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:17,941 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:54:18,134 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] [2023-11-21 19:54:18,136 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] [2023-11-21 19:54:18,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2023-11-21 19:54:18,179 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6043] [2023-11-21 19:54:18,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6491] [2023-11-21 19:54:18,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6514] [2023-11-21 19:54:18,354 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] [2023-11-21 19:54:18,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11172] [2023-11-21 19:54:18,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11175] [2023-11-21 19:54:18,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11178] [2023-11-21 19:54:18,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11181] [2023-11-21 19:54:18,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11260] [2023-11-21 19:54:18,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11268] [2023-11-21 19:54:18,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11323] [2023-11-21 19:54:18,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11330] [2023-11-21 19:54:18,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11494] [2023-11-21 19:54:18,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12171] [2023-11-21 19:54:18,515 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-21 19:54:18,516 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-21 19:54:18,517 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-21 19:54:18,518 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_9d3f29e1-9c0c-4236-bf75-298e372c2df6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-21 19:54:18,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:54:18,762 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:18,763 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:18,763 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:18,763 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:54:18,772 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:54:18,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18 WrapperNode [2023-11-21 19:54:18,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:18,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:18,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:54:18,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:54:18,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:18,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,178 INFO L138 Inliner]: procedures = 451, calls = 2401, calls flagged for inlining = 232, calls inlined = 219, statements flattened = 6782 [2023-11-21 19:54:19,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:54:19,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:54:19,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:54:19,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:54:19,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,582 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:54:19,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:54:19,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:54:19,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:54:19,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (1/1) ... [2023-11-21 19:54:19,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:19,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:54:19,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:54:19,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d3f29e1-9c0c-4236-bf75-298e372c2df6/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:54:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2023-11-21 19:54:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2023-11-21 19:54:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-21 19:54:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2023-11-21 19:54:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2023-11-21 19:54:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 19:54:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 19:54:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 19:54:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 19:54:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:54:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:54:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 19:54:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 19:54:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-11-21 19:54:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-11-21 19:54:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-21 19:54:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-21 19:54:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 19:54:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 19:54:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-21 19:54:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-21 19:54:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-21 19:54:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-21 19:54:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-21 19:54:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-21 19:54:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-21 19:54:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-21 19:54:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 19:54:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 19:54:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2023-11-21 19:54:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2023-11-21 19:54:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 19:54:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 19:54:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 19:54:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 19:54:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2023-11-21 19:54:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2023-11-21 19:54:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 19:54:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 19:54:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-21 19:54:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-21 19:54:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:54:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-21 19:54:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-21 19:54:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2023-11-21 19:54:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2023-11-21 19:54:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 19:54:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 19:54:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alert [2023-11-21 19:54:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alert [2023-11-21 19:54:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:54:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-21 19:54:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-21 19:54:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:54:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 19:54:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 19:54:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 19:54:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 19:54:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:54:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:54:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:54:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2023-11-21 19:54:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2023-11-21 19:54:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 19:54:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 19:54:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2023-11-21 19:54:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2023-11-21 19:54:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 19:54:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 19:54:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 19:54:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 19:54:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:54:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 19:54:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 19:54:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 19:54:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 19:54:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-21 19:54:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-21 19:54:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2023-11-21 19:54:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2023-11-21 19:54:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:54:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 19:54:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 19:54:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:54:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 19:54:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-21 19:54:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-21 19:54:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:54:19,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:54:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2023-11-21 19:54:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2023-11-21 19:54:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2023-11-21 19:54:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2023-11-21 19:54:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:54:19,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:54:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2023-11-21 19:54:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2023-11-21 19:54:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-21 19:54:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-21 19:54:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2023-11-21 19:54:19,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2023-11-21 19:54:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-21 19:54:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-21 19:54:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2023-11-21 19:54:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2023-11-21 19:54:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-21 19:54:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-21 19:54:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2023-11-21 19:54:19,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2023-11-21 19:54:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 19:54:19,777 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 19:54:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2023-11-21 19:54:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2023-11-21 19:54:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-21 19:54:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-21 19:54:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:54:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:54:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2023-11-21 19:54:19,780 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2023-11-21 19:54:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:54:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:54:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2023-11-21 19:54:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2023-11-21 19:54:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:54:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:54:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2023-11-21 19:54:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2023-11-21 19:54:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-21 19:54:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-21 19:54:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 19:54:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 19:54:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 19:54:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 19:54:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-21 19:54:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-21 19:54:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 19:54:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 19:54:19,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:54:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:54:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-21 19:54:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-21 19:54:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 19:54:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 19:54:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2023-11-21 19:54:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2023-11-21 19:54:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:54:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-21 19:54:19,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-21 19:54:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:54:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-21 19:54:19,796 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-21 19:54:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:54:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-21 19:54:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-21 19:54:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 19:54:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 19:54:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 19:54:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 19:54:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-21 19:54:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-21 19:54:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-21 19:54:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-21 19:54:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2023-11-21 19:54:19,798 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2023-11-21 19:54:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:54:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:54:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-21 19:54:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-21 19:54:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:54:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:54:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:54:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:54:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:54:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2023-11-21 19:54:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2023-11-21 19:54:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2023-11-21 19:54:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2023-11-21 19:54:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-21 19:54:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-21 19:54:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2023-11-21 19:54:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2023-11-21 19:54:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 19:54:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 19:54:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2023-11-21 19:54:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2023-11-21 19:54:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2023-11-21 19:54:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2023-11-21 19:54:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2023-11-21 19:54:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2023-11-21 19:54:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:54:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2023-11-21 19:54:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2023-11-21 19:54:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 19:54:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 19:54:20,725 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:54:20,729 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:54:22,669 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:54:26,834 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 19:54:26,985 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:54:29,429 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:54:29,430 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:54:29,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:29 BoogieIcfgContainer [2023-11-21 19:54:29,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:54:29,437 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:54:29,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:54:29,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:54:29,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:54:14" (1/3) ... [2023-11-21 19:54:29,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e3b115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:29, skipping insertion in model container [2023-11-21 19:54:29,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:18" (2/3) ... [2023-11-21 19:54:29,444 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e3b115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:54:29, skipping insertion in model container [2023-11-21 19:54:29,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:54:29" (3/3) ... [2023-11-21 19:54:29,445 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-21 19:54:29,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:54:29,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 19:54:29,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:54:29,597 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;@49f9d1dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:54:29,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 19:54:29,613 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) [2023-11-21 19:54:29,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-21 19:54:29,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:29,672 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] [2023-11-21 19:54:29,673 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)] === [2023-11-21 19:54:29,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:29,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1317868986, now seen corresponding path program 1 times [2023-11-21 19:54:29,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:29,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979641532] [2023-11-21 19:54:29,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:29,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:31,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-21 19:54:31,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:31,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979641532] [2023-11-21 19:54:31,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979641532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:31,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:31,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:54:31,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615012998] [2023-11-21 19:54:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:31,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:31,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:31,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:31,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:31,178 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) [2023-11-21 19:54:34,542 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 [] [2023-11-21 19:54:36,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:54:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:38,480 INFO L93 Difference]: Finished difference Result 5023 states and 7614 transitions. [2023-11-21 19:54:38,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:38,483 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 [2023-11-21 19:54:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:38,535 INFO L225 Difference]: With dead ends: 5023 [2023-11-21 19:54:38,535 INFO L226 Difference]: Without dead ends: 3316 [2023-11-21 19:54:38,551 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 [2023-11-21 19:54:38,554 INFO L413 NwaCegarLoop]: 2327 mSDtfsCounter, 2327 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 4619 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:38,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 4619 Invalid, 660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 655 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-11-21 19:54:38,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2023-11-21 19:54:38,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3290. [2023-11-21 19:54:38,896 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) [2023-11-21 19:54:38,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 4916 transitions. [2023-11-21 19:54:38,939 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 4916 transitions. Word has length 411 [2023-11-21 19:54:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:38,945 INFO L495 AbstractCegarLoop]: Abstraction has 3290 states and 4916 transitions. [2023-11-21 19:54:38,946 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) [2023-11-21 19:54:38,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 4916 transitions. [2023-11-21 19:54:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-21 19:54:38,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:38,961 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] [2023-11-21 19:54:38,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:54:38,962 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)] === [2023-11-21 19:54:38,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1529984823, now seen corresponding path program 1 times [2023-11-21 19:54:38,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:38,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350702972] [2023-11-21 19:54:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:38,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-21 19:54:39,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350702972] [2023-11-21 19:54:39,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350702972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:39,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:39,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:54:39,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211423788] [2023-11-21 19:54:39,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:39,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:39,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:39,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:39,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:39,651 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) [2023-11-21 19:54:42,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:54:44,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:54:46,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:46,828 INFO L93 Difference]: Finished difference Result 9625 states and 14381 transitions. [2023-11-21 19:54:46,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:46,829 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 [2023-11-21 19:54:46,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:46,890 INFO L225 Difference]: With dead ends: 9625 [2023-11-21 19:54:46,890 INFO L226 Difference]: Without dead ends: 6414 [2023-11-21 19:54:46,911 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 [2023-11-21 19:54:46,912 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2402 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:46,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 4530 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-21 19:54:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2023-11-21 19:54:47,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6410. [2023-11-21 19:54:47,342 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) [2023-11-21 19:54:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 9567 transitions. [2023-11-21 19:54:47,388 INFO L78 Accepts]: Start accepts. Automaton has 6410 states and 9567 transitions. Word has length 411 [2023-11-21 19:54:47,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:47,390 INFO L495 AbstractCegarLoop]: Abstraction has 6410 states and 9567 transitions. [2023-11-21 19:54:47,390 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) [2023-11-21 19:54:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 6410 states and 9567 transitions. [2023-11-21 19:54:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-21 19:54:47,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:47,411 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] [2023-11-21 19:54:47,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:54:47,412 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)] === [2023-11-21 19:54:47,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:47,422 INFO L85 PathProgramCache]: Analyzing trace with hash 875581104, now seen corresponding path program 1 times [2023-11-21 19:54:47,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:47,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847407328] [2023-11-21 19:54:47,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:47,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-21 19:54:47,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:47,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847407328] [2023-11-21 19:54:47,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847407328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:47,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:47,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:54:47,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360596917] [2023-11-21 19:54:47,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:47,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:47,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:47,938 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) [2023-11-21 19:54:50,524 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 [] [2023-11-21 19:54:53,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:54:54,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:54:56,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:54:56,463 INFO L93 Difference]: Finished difference Result 18756 states and 28285 transitions. [2023-11-21 19:54:56,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:54:56,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 418 [2023-11-21 19:54:56,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:54:56,584 INFO L225 Difference]: With dead ends: 18756 [2023-11-21 19:54:56,584 INFO L226 Difference]: Without dead ends: 12425 [2023-11-21 19:54:56,627 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 [2023-11-21 19:54:56,628 INFO L413 NwaCegarLoop]: 2284 mSDtfsCounter, 2373 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-21 19:54:56,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2373 Valid, 4535 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 660 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2023-11-21 19:54:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2023-11-21 19:54:57,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 12392. [2023-11-21 19:54:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12392 states, 7838 states have (on average 1.340520540954325) internal successors, (10507), 7940 states have internal predecessors, (10507), 3898 states have call successors, (3898), 658 states have call predecessors, (3898), 653 states have return successors, (4370), 3865 states have call predecessors, (4370), 3894 states have call successors, (4370) [2023-11-21 19:54:57,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12392 states to 12392 states and 18775 transitions. [2023-11-21 19:54:57,789 INFO L78 Accepts]: Start accepts. Automaton has 12392 states and 18775 transitions. Word has length 418 [2023-11-21 19:54:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:54:57,791 INFO L495 AbstractCegarLoop]: Abstraction has 12392 states and 18775 transitions. [2023-11-21 19:54:57,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-21 19:54:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 12392 states and 18775 transitions. [2023-11-21 19:54:57,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2023-11-21 19:54:57,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:54:57,813 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:54:57,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:54:57,814 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:54:57,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:54:57,814 INFO L85 PathProgramCache]: Analyzing trace with hash 502181361, now seen corresponding path program 1 times [2023-11-21 19:54:57,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:54:57,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487932423] [2023-11-21 19:54:57,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:54:57,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:54:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:54:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-21 19:54:58,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:54:58,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487932423] [2023-11-21 19:54:58,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487932423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:54:58,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:54:58,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:54:58,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830113359] [2023-11-21 19:54:58,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:54:58,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:54:58,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:54:58,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:54:58,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:54:58,435 INFO L87 Difference]: Start difference. First operand 12392 states and 18775 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44)