./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 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.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_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:58:27,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:58:27,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 20:58:27,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:58:27,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:58:27,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:58:27,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:58:27,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:58:27,885 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:58:27,890 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:58:27,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:58:27,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:58:27,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:58:27,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:58:27,896 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:58:27,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:58:27,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:58:27,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:58:27,898 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:58:27,898 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:58:27,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:58:27,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:58:27,900 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:58:27,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:58:27,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:58:27,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:58:27,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:58:27,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:58:27,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:27,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:58:27,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:58:27,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:58:27,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:58:27,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:58:27,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:58:27,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:58:27,907 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:58:27,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:58:27,908 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:58:27,908 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2023-11-21 20:58:28,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:58:28,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:58:28,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:58:28,252 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:58:28,253 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:58:28,254 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-21 20:58:31,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:58:31,965 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:58:31,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-21 20:58:32,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/data/a4a6d7931/85a2f5a2219342d2bdc9b733b9bd0f1c/FLAG060d141e4 [2023-11-21 20:58:32,049 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/data/a4a6d7931/85a2f5a2219342d2bdc9b733b9bd0f1c [2023-11-21 20:58:32,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:58:32,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:58:32,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:32,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:58:32,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:58:32,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:32" (1/1) ... [2023-11-21 20:58:32,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c184013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:32, skipping insertion in model container [2023-11-21 20:58:32,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:58:32" (1/1) ... [2023-11-21 20:58:32,230 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:58:35,065 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2023-11-21 20:58:35,070 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2023-11-21 20:58:35,071 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2023-11-21 20:58:35,071 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2023-11-21 20:58:35,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:35,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:58:35,349 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] [2023-11-21 20:58:35,351 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] [2023-11-21 20:58:35,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5255] [2023-11-21 20:58:35,353 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] [2023-11-21 20:58:35,353 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] [2023-11-21 20:58:35,364 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] [2023-11-21 20:58:35,368 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] [2023-11-21 20:58:35,370 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] [2023-11-21 20:58:35,372 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] [2023-11-21 20:58:35,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7057] [2023-11-21 20:58:35,642 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2023-11-21 20:58:35,643 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2023-11-21 20:58:35,643 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2023-11-21 20:58:35,644 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_e874c916-6221-447d-be2c-39325a91d792/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2023-11-21 20:58:35,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:58:35,922 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 20:58:35,930 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:58:35,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35 WrapperNode [2023-11-21 20:58:35,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:58:35,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:35,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:58:35,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:58:35,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:36,070 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:36,285 INFO L138 Inliner]: procedures = 434, calls = 1832, calls flagged for inlining = 216, calls inlined = 199, statements flattened = 4823 [2023-11-21 20:58:36,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:58:36,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:58:36,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:58:36,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:58:36,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:36,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:36,325 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,465 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 20:58:37,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,610 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:58:37,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:58:37,713 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:58:37,713 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:58:37,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (1/1) ... [2023-11-21 20:58:37,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:58:37,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:58:37,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:58:37,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e874c916-6221-447d-be2c-39325a91d792/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:58:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2023-11-21 20:58:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2023-11-21 20:58:37,790 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-21 20:58:37,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-21 20:58:37,791 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 20:58:37,791 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 20:58:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 20:58:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 20:58:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-21 20:58:37,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-21 20:58:37,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 20:58:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 20:58:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 20:58:37,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 20:58:37,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 20:58:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 20:58:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 20:58:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 20:58:37,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2023-11-21 20:58:37,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2023-11-21 20:58:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2023-11-21 20:58:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2023-11-21 20:58:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-21 20:58:37,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-21 20:58:37,798 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 20:58:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 20:58:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 20:58:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 20:58:37,799 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 20:58:37,799 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 20:58:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 20:58:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2023-11-21 20:58:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2023-11-21 20:58:37,800 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 20:58:37,800 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 20:58:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 20:58:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 20:58:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 20:58:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 20:58:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-21 20:58:37,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-21 20:58:37,801 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2023-11-21 20:58:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2023-11-21 20:58:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 20:58:37,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 20:58:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:58:37,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-21 20:58:37,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-21 20:58:37,803 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 20:58:37,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 20:58:37,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 20:58:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2023-11-21 20:58:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2023-11-21 20:58:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 20:58:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 20:58:37,805 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2023-11-21 20:58:37,805 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2023-11-21 20:58:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 20:58:37,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 20:58:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 20:58:37,807 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 20:58:37,807 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 20:58:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 20:58:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-21 20:58:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-21 20:58:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 20:58:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 20:58:37,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 20:58:37,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 20:58:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 20:58:37,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 20:58:37,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 20:58:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 20:58:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 20:58:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 20:58:37,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 20:58:37,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 20:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 20:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 20:58:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 20:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 20:58:37,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 20:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:58:37,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-21 20:58:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-21 20:58:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 20:58:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 20:58:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 20:58:37,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 20:58:37,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 20:58:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 20:58:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 20:58:37,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 20:58:37,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 20:58:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-21 20:58:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-21 20:58:37,814 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-21 20:58:37,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-21 20:58:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 20:58:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 20:58:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 20:58:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 20:58:37,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 20:58:37,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 20:58:37,816 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2023-11-21 20:58:37,816 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2023-11-21 20:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-21 20:58:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-21 20:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:58:37,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 20:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 20:58:37,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 20:58:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 20:58:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-21 20:58:37,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-21 20:58:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 20:58:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 20:58:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 20:58:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 20:58:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-21 20:58:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-21 20:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2023-11-21 20:58:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2023-11-21 20:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 20:58:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 20:58:37,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 20:58:37,820 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 20:58:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 20:58:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 20:58:37,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 20:58:37,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 20:58:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2023-11-21 20:58:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2023-11-21 20:58:37,826 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 20:58:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 20:58:37,827 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-21 20:58:37,827 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-21 20:58:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:58:37,828 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2023-11-21 20:58:37,829 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2023-11-21 20:58:37,829 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-21 20:58:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-21 20:58:37,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 20:58:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 20:58:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 20:58:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 20:58:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 20:58:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 20:58:37,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 20:58:37,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 20:58:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 20:58:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 20:58:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-21 20:58:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-21 20:58:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 20:58:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 20:58:37,837 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-21 20:58:37,837 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-21 20:58:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 20:58:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 20:58:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 20:58:37,838 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 20:58:37,838 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-21 20:58:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-21 20:58:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2023-11-21 20:58:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2023-11-21 20:58:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2023-11-21 20:58:37,839 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2023-11-21 20:58:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 20:58:37,839 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2023-11-21 20:58:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2023-11-21 20:58:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 20:58:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 20:58:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 20:58:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 20:58:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-21 20:58:37,840 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-21 20:58:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 20:58:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 20:58:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 20:58:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 20:58:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 20:58:37,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-21 20:58:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-21 20:58:38,660 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:58:38,665 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:58:39,520 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 20:58:42,554 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 20:58:42,673 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:58:46,565 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:58:46,565 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 20:58:46,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:46 BoogieIcfgContainer [2023-11-21 20:58:46,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:58:46,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:58:46,571 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:58:46,574 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:58:46,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:58:32" (1/3) ... [2023-11-21 20:58:46,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1ccb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:58:46, skipping insertion in model container [2023-11-21 20:58:46,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:58:35" (2/3) ... [2023-11-21 20:58:46,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1ccb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:58:46, skipping insertion in model container [2023-11-21 20:58:46,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:58:46" (3/3) ... [2023-11-21 20:58:46,579 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-21 20:58:46,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:58:46,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 20:58:46,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:58:46,771 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=PETRI_NET, 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;@2993d7a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:58:46,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 20:58:46,782 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) [2023-11-21 20:58:46,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-21 20:58:46,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:58:46,806 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] [2023-11-21 20:58:46,807 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)] === [2023-11-21 20:58:46,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:58:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash -2126553340, now seen corresponding path program 1 times [2023-11-21 20:58:46,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:58:46,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790839119] [2023-11-21 20:58:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:58:46,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:58:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:58:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 20:58:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 20:58:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 20:58:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 20:58:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 20:58:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 20:58:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 20:58:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:58:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 20:58:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-21 20:58:47,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:58:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 20:58:47,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:58:47,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790839119] [2023-11-21 20:58:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790839119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:58:47,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:58:47,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:58:47,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306020694] [2023-11-21 20:58:47,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:58:47,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:58:47,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:58:47,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:58:47,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:58:47,912 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 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-21 20:58:51,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:53,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:58:59,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:01,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:03,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:05,408 INFO L93 Difference]: Finished difference Result 3521 states and 5168 transitions. [2023-11-21 20:59:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 20:59:05,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 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 [2023-11-21 20:59:05,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:05,453 INFO L225 Difference]: With dead ends: 3521 [2023-11-21 20:59:05,453 INFO L226 Difference]: Without dead ends: 2344 [2023-11-21 20:59:05,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:05,470 INFO L413 NwaCegarLoop]: 984 mSDtfsCounter, 1954 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 2121 mSolverCounterSat, 1104 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1104 IncrementalHoareTripleChecker+Valid, 2121 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:05,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 2110 Invalid, 3229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1104 Valid, 2121 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2023-11-21 20:59:05,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2344 states. [2023-11-21 20:59:05,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2344 to 2262. [2023-11-21 20:59:05,768 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) [2023-11-21 20:59:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3241 transitions. [2023-11-21 20:59:05,798 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3241 transitions. Word has length 111 [2023-11-21 20:59:05,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:05,800 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3241 transitions. [2023-11-21 20:59:05,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-21 20:59:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3241 transitions. [2023-11-21 20:59:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-21 20:59:05,813 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:05,814 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] [2023-11-21 20:59:05,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 20:59:05,816 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)] === [2023-11-21 20:59:05,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:05,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1412676753, now seen corresponding path program 1 times [2023-11-21 20:59:05,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:05,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861033709] [2023-11-21 20:59:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:05,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 20:59:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 20:59:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 20:59:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 20:59:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 20:59:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 20:59:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 20:59:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 20:59:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-21 20:59:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-21 20:59:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-21 20:59:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 20:59:06,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:06,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861033709] [2023-11-21 20:59:06,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861033709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:06,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:06,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 20:59:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337209345] [2023-11-21 20:59:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:06,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 20:59:06,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 20:59:06,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 20:59:06,363 INFO L87 Difference]: Start difference. First operand 2262 states and 3241 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-21 20:59:13,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:15,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:17,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 20:59:19,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 20:59:19,974 INFO L93 Difference]: Finished difference Result 6524 states and 9374 transitions. [2023-11-21 20:59:19,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 20:59:19,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 3 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 [2023-11-21 20:59:19,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 20:59:20,017 INFO L225 Difference]: With dead ends: 6524 [2023-11-21 20:59:20,017 INFO L226 Difference]: Without dead ends: 4281 [2023-11-21 20:59:20,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:20,032 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 1725 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 1069 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 3199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1069 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-11-21 20:59:20,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 2195 Invalid, 3199 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1069 Valid, 2128 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2023-11-21 20:59:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2023-11-21 20:59:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 4115. [2023-11-21 20:59:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4115 states, 2406 states have (on average 1.2805486284289276) internal successors, (3081), 2482 states have internal predecessors, (3081), 1385 states have call successors, (1385), 316 states have call predecessors, (1385), 321 states have return successors, (1413), 1360 states have call predecessors, (1413), 1381 states have call successors, (1413) [2023-11-21 20:59:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4115 states to 4115 states and 5879 transitions. [2023-11-21 20:59:20,367 INFO L78 Accepts]: Start accepts. Automaton has 4115 states and 5879 transitions. Word has length 113 [2023-11-21 20:59:20,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 20:59:20,368 INFO L495 AbstractCegarLoop]: Abstraction has 4115 states and 5879 transitions. [2023-11-21 20:59:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-21 20:59:20,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4115 states and 5879 transitions. [2023-11-21 20:59:20,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-21 20:59:20,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:20,377 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] [2023-11-21 20:59:20,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 20:59:20,380 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 20:59:20,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:20,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1598098717, now seen corresponding path program 1 times [2023-11-21 20:59:20,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:20,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173656121] [2023-11-21 20:59:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:20,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat