./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:58:08,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:58:09,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:58:09,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:58:09,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:58:09,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:58:09,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:58:09,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:58:09,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:58:09,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:58:09,087 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:58:09,088 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:58:09,088 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:58:09,090 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:58:09,091 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:58:09,091 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:58:09,092 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:58:09,092 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:58:09,093 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:58:09,093 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:58:09,094 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:58:09,094 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:58:09,096 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:58:09,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:58:09,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:58:09,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:58:09,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:58:09,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:58:09,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:58:09,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:58:09,100 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:58:09,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:58:09,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:58:09,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:09,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:58:09,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:58:09,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:58:09,103 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:58:09,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:58:09,104 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:58:09,104 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:58:09,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:58:09,105 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2023-11-19 04:58:09,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:58:09,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:58:09,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:58:09,449 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:58:09,450 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:58:09,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-19 04:58:12,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:58:13,223 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:58:13,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-19 04:58:13,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/data/90f7d211f/f44f2361956e42368455a9bd8cb6c8e5/FLAG7c9c7dcec [2023-11-19 04:58:13,305 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/data/90f7d211f/f44f2361956e42368455a9bd8cb6c8e5 [2023-11-19 04:58:13,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:58:13,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:58:13,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:13,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:58:13,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:58:13,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c638d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:13, skipping insertion in model container [2023-11-19 04:58:13,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:58:13" (1/1) ... [2023-11-19 04:58:13,555 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:58:16,794 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2023-11-19 04:58:16,799 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2023-11-19 04:58:16,799 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2023-11-19 04:58:16,800 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2023-11-19 04:58:16,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:16,864 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:58:16,971 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"); [5247] [2023-11-19 04:58:16,974 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)); [5254] [2023-11-19 04:58:16,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5261] [2023-11-19 04:58:17,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5305-5306] [2023-11-19 04:58:17,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5311-5313] [2023-11-19 04:58:17,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5517-5518] [2023-11-19 04:58:17,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5551-5552] [2023-11-19 04:58:17,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [5588-5589] [2023-11-19 04:58:17,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5625-5626] [2023-11-19 04:58:17,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [5890-5891] [2023-11-19 04:58:17,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5897] [2023-11-19 04:58:17,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6716] [2023-11-19 04:58:17,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6768] [2023-11-19 04:58:17,237 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2023-11-19 04:58:17,238 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2023-11-19 04:58:17,239 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2023-11-19 04:58:17,239 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_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2023-11-19 04:58:17,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:58:17,508 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:58:17,516 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:58:17,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17 WrapperNode [2023-11-19 04:58:17,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:58:17,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:17,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:58:17,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:58:17,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:17,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:17,870 INFO L138 Inliner]: procedures = 451, calls = 2224, calls flagged for inlining = 222, calls inlined = 196, statements flattened = 5139 [2023-11-19 04:58:17,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:58:17,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:58:17,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:58:17,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:58:17,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:17,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:17,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:17,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:18,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:18,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:18,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:18,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:18,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:58:18,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:58:18,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:58:18,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:58:18,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (1/1) ... [2023-11-19 04:58:18,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:58:18,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:58:18,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:58:18,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bec6f6-1ed3-4d03-9c8d-dfb628749a5c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:58:18,250 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 04:58:18,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 04:58:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:58:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:58:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:58:18,251 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:58:18,251 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2023-11-19 04:58:18,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2023-11-19 04:58:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:58:18,254 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:58:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:58:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:58:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:58:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:58:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:58:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:58:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:58:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:58:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:58:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:58:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 04:58:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 04:58:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2023-11-19 04:58:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2023-11-19 04:58:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 04:58:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 04:58:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 04:58:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 04:58:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:58:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:58:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-19 04:58:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-19 04:58:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:58:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 04:58:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 04:58:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:58:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:58:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:58:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:58:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 04:58:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 04:58:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:58:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:58:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:58:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:58:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:58:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:58:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:58:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:58:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:58:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:58:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:58:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 04:58:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 04:58:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:58:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:58:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:58:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:58:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:58:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:58:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:58:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:58:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:58:18,264 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:58:18,264 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2023-11-19 04:58:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2023-11-19 04:58:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:58:18,265 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 04:58:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 04:58:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:58:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:58:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:58:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:58:18,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:58:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:58:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:58:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:58:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:58:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:58:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:58:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:58:18,267 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:58:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:58:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2023-11-19 04:58:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2023-11-19 04:58:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2023-11-19 04:58:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2023-11-19 04:58:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:58:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:58:18,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:58:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:58:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:58:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:58:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:58:18,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:58:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-19 04:58:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-19 04:58:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:58:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:58:18,270 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:58:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:58:18,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:58:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 04:58:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 04:58:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:58:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:58:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2023-11-19 04:58:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2023-11-19 04:58:18,272 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 04:58:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 04:58:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 04:58:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 04:58:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:58:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:58:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-19 04:58:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-19 04:58:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:58:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:58:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2023-11-19 04:58:18,274 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2023-11-19 04:58:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 04:58:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 04:58:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:58:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:58:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2023-11-19 04:58:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2023-11-19 04:58:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:58:18,276 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:58:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 04:58:18,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 04:58:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:58:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:58:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:58:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:58:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:58:18,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:58:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:58:18,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:58:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2023-11-19 04:58:18,289 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2023-11-19 04:58:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2023-11-19 04:58:18,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2023-11-19 04:58:18,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:58:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:58:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2023-11-19 04:58:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2023-11-19 04:58:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:58:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:58:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:58:18,290 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:58:18,290 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:58:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:58:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 04:58:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 04:58:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:58:18,292 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:58:18,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:58:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2023-11-19 04:58:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2023-11-19 04:58:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2023-11-19 04:58:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2023-11-19 04:58:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:58:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:58:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:58:18,293 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2023-11-19 04:58:18,293 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2023-11-19 04:58:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 04:58:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 04:58:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:58:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:58:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:58:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:58:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:58:18,294 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-19 04:58:18,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-19 04:58:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:58:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:58:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:58:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:58:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 04:58:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 04:58:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:58:18,295 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:58:18,295 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:58:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:58:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2023-11-19 04:58:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2023-11-19 04:58:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:58:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:58:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:58:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:58:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:58:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:58:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:58:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2023-11-19 04:58:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2023-11-19 04:58:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:58:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:58:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 04:58:18,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 04:58:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:58:18,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:58:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:58:18,298 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2023-11-19 04:58:18,298 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2023-11-19 04:58:19,146 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:58:19,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:58:19,807 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:58:23,618 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:58:23,744 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:58:25,884 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:58:25,884 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:58:25,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:25 BoogieIcfgContainer [2023-11-19 04:58:25,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:58:25,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:58:25,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:58:25,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:58:25,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:58:13" (1/3) ... [2023-11-19 04:58:25,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfff10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:25, skipping insertion in model container [2023-11-19 04:58:25,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:58:17" (2/3) ... [2023-11-19 04:58:25,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cfff10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:58:25, skipping insertion in model container [2023-11-19 04:58:25,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:58:25" (3/3) ... [2023-11-19 04:58:25,908 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-19 04:58:25,929 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:58:25,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:58:26,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:58:26,035 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;@931bf9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:58:26,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:58:26,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 1339 states, 773 states have (on average 1.2897800776196637) internal successors, (997), 798 states have internal predecessors, (997), 470 states have call successors, (470), 94 states have call predecessors, (470), 93 states have return successors, (464), 459 states have call predecessors, (464), 464 states have call successors, (464) [2023-11-19 04:58:26,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 04:58:26,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:26,087 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:26,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:26,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash -926955291, now seen corresponding path program 1 times [2023-11-19 04:58:26,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:26,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423888125] [2023-11-19 04:58:26,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 04:58:27,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:27,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423888125] [2023-11-19 04:58:27,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423888125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:27,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:27,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:27,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5579252] [2023-11-19 04:58:27,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:27,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:27,352 INFO L87 Difference]: Start difference. First operand has 1339 states, 773 states have (on average 1.2897800776196637) internal successors, (997), 798 states have internal predecessors, (997), 470 states have call successors, (470), 94 states have call predecessors, (470), 93 states have return successors, (464), 459 states have call predecessors, (464), 464 states have call successors, (464) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:58:29,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:29,350 INFO L93 Difference]: Finished difference Result 3902 states and 5675 transitions. [2023-11-19 04:58:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:29,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-19 04:58:29,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:29,396 INFO L225 Difference]: With dead ends: 3902 [2023-11-19 04:58:29,396 INFO L226 Difference]: Without dead ends: 2572 [2023-11-19 04:58:29,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:29,416 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 1812 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:29,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 3273 Invalid, 573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 04:58:29,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2023-11-19 04:58:29,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2568. [2023-11-19 04:58:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 1498 states have (on average 1.2837116154873165) internal successors, (1923), 1547 states have internal predecessors, (1923), 885 states have call successors, (885), 183 states have call predecessors, (885), 182 states have return successors, (881), 871 states have call predecessors, (881), 881 states have call successors, (881) [2023-11-19 04:58:29,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 3689 transitions. [2023-11-19 04:58:29,727 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 3689 transitions. Word has length 111 [2023-11-19 04:58:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:29,728 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 3689 transitions. [2023-11-19 04:58:29,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:58:29,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 3689 transitions. [2023-11-19 04:58:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-19 04:58:29,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:29,736 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:29,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:58:29,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:29,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash -583168308, now seen corresponding path program 1 times [2023-11-19 04:58:29,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:29,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820048965] [2023-11-19 04:58:29,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:29,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 04:58:30,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:30,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820048965] [2023-11-19 04:58:30,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820048965] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:30,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:30,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:30,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500003705] [2023-11-19 04:58:30,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:30,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:30,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:30,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:30,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:30,101 INFO L87 Difference]: Start difference. First operand 2568 states and 3689 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:58:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:31,937 INFO L93 Difference]: Finished difference Result 7324 states and 10491 transitions. [2023-11-19 04:58:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:31,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2023-11-19 04:58:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:31,998 INFO L225 Difference]: With dead ends: 7324 [2023-11-19 04:58:31,998 INFO L226 Difference]: Without dead ends: 4775 [2023-11-19 04:58:32,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:32,015 INFO L413 NwaCegarLoop]: 1639 mSDtfsCounter, 1619 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:32,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 3220 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 04:58:32,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2023-11-19 04:58:32,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4745. [2023-11-19 04:58:32,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4745 states, 2770 states have (on average 1.2740072202166064) internal successors, (3529), 2866 states have internal predecessors, (3529), 1627 states have call successors, (1627), 348 states have call predecessors, (1627), 345 states have return successors, (1625), 1594 states have call predecessors, (1625), 1623 states have call successors, (1625) [2023-11-19 04:58:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 6781 transitions. [2023-11-19 04:58:32,514 INFO L78 Accepts]: Start accepts. Automaton has 4745 states and 6781 transitions. Word has length 119 [2023-11-19 04:58:32,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:32,514 INFO L495 AbstractCegarLoop]: Abstraction has 4745 states and 6781 transitions. [2023-11-19 04:58:32,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:58:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 4745 states and 6781 transitions. [2023-11-19 04:58:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-19 04:58:32,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:32,519 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:32,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:58:32,520 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:32,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:32,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1133344625, now seen corresponding path program 1 times [2023-11-19 04:58:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:32,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987738342] [2023-11-19 04:58:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:32,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 04:58:32,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987738342] [2023-11-19 04:58:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987738342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:32,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:32,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:32,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126476612] [2023-11-19 04:58:32,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:32,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:32,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:32,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:32,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:32,933 INFO L87 Difference]: Start difference. First operand 4745 states and 6781 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 04:58:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:34,893 INFO L93 Difference]: Finished difference Result 13765 states and 19657 transitions. [2023-11-19 04:58:34,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:34,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2023-11-19 04:58:34,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:34,967 INFO L225 Difference]: With dead ends: 13765 [2023-11-19 04:58:34,967 INFO L226 Difference]: Without dead ends: 9039 [2023-11-19 04:58:34,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:34,999 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 1755 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:35,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 3382 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 04:58:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9039 states. [2023-11-19 04:58:35,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9039 to 9005. [2023-11-19 04:58:35,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9005 states, 5268 states have (on average 1.2727790432801822) internal successors, (6705), 5452 states have internal predecessors, (6705), 3067 states have call successors, (3067), 678 states have call predecessors, (3067), 667 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-19 04:58:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9005 states to 9005 states and 12849 transitions. [2023-11-19 04:58:35,860 INFO L78 Accepts]: Start accepts. Automaton has 9005 states and 12849 transitions. Word has length 125 [2023-11-19 04:58:35,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:35,861 INFO L495 AbstractCegarLoop]: Abstraction has 9005 states and 12849 transitions. [2023-11-19 04:58:35,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-19 04:58:35,863 INFO L276 IsEmpty]: Start isEmpty. Operand 9005 states and 12849 transitions. [2023-11-19 04:58:35,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-19 04:58:35,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:35,871 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:35,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:58:35,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:35,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash -792618146, now seen corresponding path program 1 times [2023-11-19 04:58:35,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:35,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251940251] [2023-11-19 04:58:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-11-19 04:58:36,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:36,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251940251] [2023-11-19 04:58:36,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251940251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:36,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:36,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:36,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662862089] [2023-11-19 04:58:36,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:36,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:36,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:36,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:36,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:36,726 INFO L87 Difference]: Start difference. First operand 9005 states and 12849 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:58:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:38,732 INFO L93 Difference]: Finished difference Result 9011 states and 12854 transitions. [2023-11-19 04:58:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:58:38,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2023-11-19 04:58:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:38,812 INFO L225 Difference]: With dead ends: 9011 [2023-11-19 04:58:38,812 INFO L226 Difference]: Without dead ends: 9009 [2023-11-19 04:58:38,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:38,820 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 1856 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:38,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 4872 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 04:58:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9009 states. [2023-11-19 04:58:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9009 to 9009. [2023-11-19 04:58:39,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9009 states, 5271 states have (on average 1.2726237905520774) internal successors, (6708), 5455 states have internal predecessors, (6708), 3067 states have call successors, (3067), 679 states have call predecessors, (3067), 668 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-19 04:58:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9009 states to 9009 states and 12852 transitions. [2023-11-19 04:58:39,738 INFO L78 Accepts]: Start accepts. Automaton has 9009 states and 12852 transitions. Word has length 157 [2023-11-19 04:58:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:39,740 INFO L495 AbstractCegarLoop]: Abstraction has 9009 states and 12852 transitions. [2023-11-19 04:58:39,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:58:39,741 INFO L276 IsEmpty]: Start isEmpty. Operand 9009 states and 12852 transitions. [2023-11-19 04:58:39,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-19 04:58:39,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:39,750 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:39,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:58:39,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:39,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -127742508, now seen corresponding path program 1 times [2023-11-19 04:58:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920052342] [2023-11-19 04:58:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:39,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:40,384 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2023-11-19 04:58:40,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:40,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920052342] [2023-11-19 04:58:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920052342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:40,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:40,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:40,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779634249] [2023-11-19 04:58:40,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:40,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:40,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:40,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:40,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:40,387 INFO L87 Difference]: Start difference. First operand 9009 states and 12852 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 04:58:42,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:42,288 INFO L93 Difference]: Finished difference Result 9015 states and 12857 transitions. [2023-11-19 04:58:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:58:42,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 166 [2023-11-19 04:58:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:42,342 INFO L225 Difference]: With dead ends: 9015 [2023-11-19 04:58:42,343 INFO L226 Difference]: Without dead ends: 9013 [2023-11-19 04:58:42,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:42,349 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:42,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 04:58:42,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9013 states. [2023-11-19 04:58:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9013 to 9013. [2023-11-19 04:58:43,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 5274 states have (on average 1.2724687144482367) internal successors, (6711), 5458 states have internal predecessors, (6711), 3067 states have call successors, (3067), 680 states have call predecessors, (3067), 669 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-19 04:58:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 12855 transitions. [2023-11-19 04:58:43,052 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 12855 transitions. Word has length 166 [2023-11-19 04:58:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:43,052 INFO L495 AbstractCegarLoop]: Abstraction has 9013 states and 12855 transitions. [2023-11-19 04:58:43,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 04:58:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 12855 transitions. [2023-11-19 04:58:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 04:58:43,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:43,060 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:43,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:58:43,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:43,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -123269441, now seen corresponding path program 1 times [2023-11-19 04:58:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:43,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419103465] [2023-11-19 04:58:43,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-19 04:58:43,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:43,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419103465] [2023-11-19 04:58:43,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419103465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:43,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:43,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:43,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142327452] [2023-11-19 04:58:43,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:43,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:43,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:43,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:43,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:43,680 INFO L87 Difference]: Start difference. First operand 9013 states and 12855 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-19 04:58:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:45,574 INFO L93 Difference]: Finished difference Result 9019 states and 12860 transitions. [2023-11-19 04:58:45,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:58:45,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 170 [2023-11-19 04:58:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:45,623 INFO L225 Difference]: With dead ends: 9019 [2023-11-19 04:58:45,623 INFO L226 Difference]: Without dead ends: 9017 [2023-11-19 04:58:45,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:45,629 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:45,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 04:58:45,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9017 states. [2023-11-19 04:58:46,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9017 to 9017. [2023-11-19 04:58:46,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9017 states, 5277 states have (on average 1.2723138146674247) internal successors, (6714), 5461 states have internal predecessors, (6714), 3067 states have call successors, (3067), 681 states have call predecessors, (3067), 670 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-19 04:58:46,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9017 states to 9017 states and 12858 transitions. [2023-11-19 04:58:46,597 INFO L78 Accepts]: Start accepts. Automaton has 9017 states and 12858 transitions. Word has length 170 [2023-11-19 04:58:46,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:46,598 INFO L495 AbstractCegarLoop]: Abstraction has 9017 states and 12858 transitions. [2023-11-19 04:58:46,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-19 04:58:46,598 INFO L276 IsEmpty]: Start isEmpty. Operand 9017 states and 12858 transitions. [2023-11-19 04:58:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-19 04:58:46,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:46,608 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:58:46,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:46,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1639334484, now seen corresponding path program 1 times [2023-11-19 04:58:46,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:46,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591248205] [2023-11-19 04:58:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2023-11-19 04:58:47,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:47,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591248205] [2023-11-19 04:58:47,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591248205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:47,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:47,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346000313] [2023-11-19 04:58:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:47,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:47,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:47,238 INFO L87 Difference]: Start difference. First operand 9017 states and 12858 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 04:58:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:49,422 INFO L93 Difference]: Finished difference Result 9023 states and 12863 transitions. [2023-11-19 04:58:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:58:49,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 176 [2023-11-19 04:58:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:49,459 INFO L225 Difference]: With dead ends: 9023 [2023-11-19 04:58:49,459 INFO L226 Difference]: Without dead ends: 9021 [2023-11-19 04:58:49,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:49,463 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:49,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 04:58:49,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2023-11-19 04:58:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 9021. [2023-11-19 04:58:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 5280 states have (on average 1.272159090909091) internal successors, (6717), 5464 states have internal predecessors, (6717), 3067 states have call successors, (3067), 682 states have call predecessors, (3067), 671 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-19 04:58:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12861 transitions. [2023-11-19 04:58:50,187 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12861 transitions. Word has length 176 [2023-11-19 04:58:50,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:50,188 INFO L495 AbstractCegarLoop]: Abstraction has 9021 states and 12861 transitions. [2023-11-19 04:58:50,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-19 04:58:50,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12861 transitions. [2023-11-19 04:58:50,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-19 04:58:50,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:50,198 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:50,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:58:50,198 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:58:50,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:50,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1048895106, now seen corresponding path program 1 times [2023-11-19 04:58:50,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:50,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918125604] [2023-11-19 04:58:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2023-11-19 04:58:50,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918125604] [2023-11-19 04:58:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918125604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:50,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:50,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:58:50,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55202474] [2023-11-19 04:58:50,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:50,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:58:50,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:50,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:58:50,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:58:50,720 INFO L87 Difference]: Start difference. First operand 9021 states and 12861 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-19 04:58:52,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:52,652 INFO L93 Difference]: Finished difference Result 9027 states and 12866 transitions. [2023-11-19 04:58:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:58:52,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 181 [2023-11-19 04:58:52,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:52,691 INFO L225 Difference]: With dead ends: 9027 [2023-11-19 04:58:52,691 INFO L226 Difference]: Without dead ends: 9025 [2023-11-19 04:58:52,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:58:52,696 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:52,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 04:58:52,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9025 states.