./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-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX --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 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:57:52,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:57:52,337 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:57:52,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:57:52,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:57:52,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:57:52,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:57:52,392 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:57:52,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:57:52,394 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:57:52,395 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:57:52,395 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:57:52,396 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:57:52,397 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:57:52,398 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:57:52,399 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:57:52,399 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:57:52,400 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:57:52,401 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:57:52,402 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:57:52,403 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:57:52,409 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:57:52,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:57:52,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:57:52,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:57:52,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:57:52,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:57:52,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:57:52,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:57:52,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:57:52,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:57:52,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:57:52,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:57:52,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:57:52,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:57:52,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:57:52,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:57:52,421 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:57:52,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:57:52,423 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:57:52,423 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:57:52,424 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:57:52,424 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2023-11-12 00:57:52,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:57:52,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:57:52,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:57:52,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:57:52,825 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:57:52,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-12 00:57:56,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:57:56,881 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:57:56,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-12 00:57:56,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/data/77005a91d/ee605b52def545acab556e88ba32d755/FLAG32422c0ce [2023-11-12 00:57:56,957 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/data/77005a91d/ee605b52def545acab556e88ba32d755 [2023-11-12 00:57:56,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:57:56,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:57:56,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:57:56,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:57:56,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:57:56,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:56" (1/1) ... [2023-11-12 00:57:56,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1417a112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:57:56, skipping insertion in model container [2023-11-12 00:57:56,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:57:56" (1/1) ... [2023-11-12 00:57:57,145 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:58:00,170 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2023-11-12 00:58:00,174 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2023-11-12 00:58:00,175 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2023-11-12 00:58:00,176 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2023-11-12 00:58:00,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:58:00,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:58:00,441 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"); [5241] [2023-11-12 00:58:00,443 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)); [5248] [2023-11-12 00:58:00,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5255] [2023-11-12 00:58:00,446 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)); [5294-5295] [2023-11-12 00:58:00,447 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"); [5300-5302] [2023-11-12 00:58:00,456 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)); [5511-5512] [2023-11-12 00:58:00,459 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)); [5545-5546] [2023-11-12 00:58:00,460 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)); [5582-5583] [2023-11-12 00:58:00,462 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)); [5619-5620] [2023-11-12 00:58:00,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7057] [2023-11-12 00:58:00,761 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2023-11-12 00:58:00,762 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2023-11-12 00:58:00,762 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2023-11-12 00:58:00,763 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_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2023-11-12 00:58:00,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:58:01,058 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:58:01,067 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:58:01,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01 WrapperNode [2023-11-12 00:58:01,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:58:01,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:58:01,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:58:01,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:58:01,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,408 INFO L138 Inliner]: procedures = 434, calls = 1832, calls flagged for inlining = 216, calls inlined = 199, statements flattened = 4823 [2023-11-12 00:58:01,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:58:01,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:58:01,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:58:01,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:58:01,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,471 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:58:01,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:58:01,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:58:01,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:58:01,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (1/1) ... [2023-11-12 00:58:01,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:58:01,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:58:01,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:58:01,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece6a1f3-46fd-4e05-bdd2-cb1df1da08bf/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:58:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2023-11-12 00:58:01,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2023-11-12 00:58:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-12 00:58:01,805 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-12 00:58:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:58:01,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:58:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:58:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:58:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:58:01,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:58:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:58:01,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:58:01,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:58:01,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:58:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:58:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:58:01,814 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:58:01,814 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:58:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2023-11-12 00:58:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2023-11-12 00:58:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2023-11-12 00:58:01,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2023-11-12 00:58:01,815 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:58:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:58:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:58:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:58:01,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:58:01,816 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:58:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:58:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:58:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:58:01,817 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2023-11-12 00:58:01,817 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2023-11-12 00:58:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:58:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:58:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:58:01,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:58:01,818 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:58:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:58:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-12 00:58:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-12 00:58:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2023-11-12 00:58:01,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2023-11-12 00:58:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:58:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:58:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:58:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-12 00:58:01,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-12 00:58:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:58:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:58:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:58:01,823 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2023-11-12 00:58:01,823 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2023-11-12 00:58:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:58:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:58:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2023-11-12 00:58:01,824 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2023-11-12 00:58:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:58:01,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:58:01,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:58:01,825 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:58:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:58:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:58:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-12 00:58:01,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-12 00:58:01,826 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:58:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:58:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:58:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:58:01,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:58:01,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:58:01,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:58:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:58:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:58:01,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:58:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:58:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:58:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:58:01,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:58:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:58:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:58:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:58:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:58:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-12 00:58:01,831 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-12 00:58:01,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:58:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:58:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:58:01,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:58:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:58:01,832 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:58:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:58:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:58:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:58:01,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:58:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:58:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:58:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:58:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:58:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:58:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:58:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:58:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:58:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:58:01,912 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2023-11-12 00:58:01,912 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2023-11-12 00:58:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 00:58:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 00:58:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:58:01,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:58:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:58:01,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:58:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:58:01,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:58:01,914 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-12 00:58:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-12 00:58:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:58:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:58:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:58:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:58:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-12 00:58:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-12 00:58:01,915 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2023-11-12 00:58:01,915 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2023-11-12 00:58:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:58:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:58:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:58:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:58:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:58:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:58:01,916 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:58:01,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:58:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2023-11-12 00:58:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2023-11-12 00:58:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:58:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:58:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-12 00:58:01,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-12 00:58:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:58:01,917 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2023-11-12 00:58:01,918 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2023-11-12 00:58:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:58:01,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:58:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:58:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:58:01,918 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:58:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:58:01,918 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:58:01,919 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:58:01,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:58:01,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:58:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:58:01,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:58:01,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-12 00:58:01,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-12 00:58:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:58:01,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:58:01,921 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-12 00:58:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-12 00:58:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:58:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:58:01,922 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:58:01,922 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:58:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-12 00:58:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-12 00:58:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2023-11-12 00:58:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2023-11-12 00:58:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2023-11-12 00:58:01,923 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2023-11-12 00:58:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:58:01,923 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2023-11-12 00:58:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2023-11-12 00:58:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:58:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:58:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:58:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:58:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-12 00:58:01,924 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-12 00:58:01,924 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:58:01,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:58:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:58:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:58:01,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:58:01,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-12 00:58:01,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-12 00:58:02,742 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:58:02,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:58:03,676 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:58:06,718 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:58:06,817 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:58:10,002 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:58:10,003 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:58:10,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:10 BoogieIcfgContainer [2023-11-12 00:58:10,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:58:10,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:58:10,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:58:10,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:58:10,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:57:56" (1/3) ... [2023-11-12 00:58:10,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42923adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:58:10, skipping insertion in model container [2023-11-12 00:58:10,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:58:01" (2/3) ... [2023-11-12 00:58:10,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42923adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:58:10, skipping insertion in model container [2023-11-12 00:58:10,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:58:10" (3/3) ... [2023-11-12 00:58:10,022 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-12 00:58:10,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:58:10,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:58:10,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:58:10,163 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;@8b1fc52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:58:10,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:58:10,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 1186 states, 688 states have (on average 1.2921511627906976) internal successors, (889), 708 states have internal predecessors, (889), 412 states have call successors, (412), 84 states have call predecessors, (412), 83 states have return successors, (406), 403 states have call predecessors, (406), 406 states have call successors, (406) [2023-11-12 00:58:10,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 00:58:10,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:10,213 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] [2023-11-12 00:58:10,214 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)] === [2023-11-12 00:58:10,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:10,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1684142446, now seen corresponding path program 1 times [2023-11-12 00:58:10,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:10,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979793618] [2023-11-12 00:58:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:10,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:58:11,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:11,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979793618] [2023-11-12 00:58:11,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979793618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:11,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:11,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:58:11,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229611310] [2023-11-12 00:58:11,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:11,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:58:11,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:11,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:58:11,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:58:11,249 INFO L87 Difference]: Start difference. First operand has 1186 states, 688 states have (on average 1.2921511627906976) internal successors, (889), 708 states have internal predecessors, (889), 412 states have call successors, (412), 84 states have call predecessors, (412), 83 states have return successors, (406), 403 states have call predecessors, (406), 406 states have call successors, (406) 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) [2023-11-12 00:58:14,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:15,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:18,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:20,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:21,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:22,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:22,362 INFO L93 Difference]: Finished difference Result 3443 states and 5027 transitions. [2023-11-12 00:58:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:58:22,364 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 [2023-11-12 00:58:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:22,412 INFO L225 Difference]: With dead ends: 3443 [2023-11-12 00:58:22,412 INFO L226 Difference]: Without dead ends: 2266 [2023-11-12 00:58:22,441 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 [2023-11-12 00:58:22,445 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 1588 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 2825 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:22,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 2825 Invalid, 574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2023-11-12 00:58:22,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2023-11-12 00:58:22,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 2262. [2023-11-12 00:58:22,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1328 states have (on average 1.2853915662650603) internal successors, (1707), 1367 states have internal predecessors, (1707), 769 states have call successors, (769), 163 states have call predecessors, (769), 162 states have return successors, (765), 759 states have call predecessors, (765), 765 states have call successors, (765) [2023-11-12 00:58:22,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3241 transitions. [2023-11-12 00:58:22,812 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3241 transitions. Word has length 111 [2023-11-12 00:58:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:22,819 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3241 transitions. [2023-11-12 00:58:22,819 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) [2023-11-12 00:58:22,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3241 transitions. [2023-11-12 00:58:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-12 00:58:22,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:22,828 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] [2023-11-12 00:58:22,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:58:22,829 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)] === [2023-11-12 00:58:22,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2027918894, now seen corresponding path program 1 times [2023-11-12 00:58:22,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:22,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667003769] [2023-11-12 00:58:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:22,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:58:23,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:23,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667003769] [2023-11-12 00:58:23,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667003769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:23,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:23,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:58:23,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392102192] [2023-11-12 00:58:23,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:23,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:58:23,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:23,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:58:23,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:58:23,367 INFO L87 Difference]: Start difference. First operand 2262 states and 3241 transitions. 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:58:26,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:28,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:30,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:33,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:58:33,352 INFO L93 Difference]: Finished difference Result 6372 states and 9115 transitions. [2023-11-12 00:58:33,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:58:33,354 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2023-11-12 00:58:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:58:33,531 INFO L225 Difference]: With dead ends: 6372 [2023-11-12 00:58:33,531 INFO L226 Difference]: Without dead ends: 4129 [2023-11-12 00:58:33,542 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 [2023-11-12 00:58:33,544 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1403 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:58:33,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2853 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 565 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2023-11-12 00:58:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2023-11-12 00:58:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 4099. [2023-11-12 00:58:33,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4099 states, 2398 states have (on average 1.281484570475396) internal successors, (3073), 2470 states have internal predecessors, (3073), 1385 states have call successors, (1385), 316 states have call predecessors, (1385), 313 states have return successors, (1399), 1358 states have call predecessors, (1399), 1381 states have call successors, (1399) [2023-11-12 00:58:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5857 transitions. [2023-11-12 00:58:33,860 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5857 transitions. Word has length 113 [2023-11-12 00:58:33,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:58:33,861 INFO L495 AbstractCegarLoop]: Abstraction has 4099 states and 5857 transitions. [2023-11-12 00:58:33,862 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:58:33,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5857 transitions. [2023-11-12 00:58:33,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 00:58:33,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:58:33,870 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] [2023-11-12 00:58:33,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:58:33,871 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)] === [2023-11-12 00:58:33,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:58:33,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1125518030, now seen corresponding path program 1 times [2023-11-12 00:58:33,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:58:33,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611550804] [2023-11-12 00:58:33,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:58:33,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:58:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:58:34,135 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:58:34,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:58:34,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611550804] [2023-11-12 00:58:34,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611550804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:58:34,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:58:34,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:58:34,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335338803] [2023-11-12 00:58:34,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:58:34,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:58:34,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:58:34,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:58:34,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:58:34,141 INFO L87 Difference]: Start difference. First operand 4099 states and 5857 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-12 00:58:36,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:39,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:41,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:58:43,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []