./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:09:42,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:09:42,256 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:09:42,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:09:42,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:09:42,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:09:42,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:09:42,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:09:42,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:09:42,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:09:42,320 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:09:42,322 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:09:42,322 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:09:42,324 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:09:42,325 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:09:42,325 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:09:42,326 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:09:42,326 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:09:42,327 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:09:42,327 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:09:42,329 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:09:42,330 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:09:42,331 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:09:42,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:09:42,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:09:42,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:09:42,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:09:42,334 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:09:42,334 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:09:42,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:09:42,336 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:09:42,336 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:09:42,337 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:09:42,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:42,337 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:09:42,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:09:42,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:09:42,338 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:09:42,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:09:42,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:09:42,339 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:09:42,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:09:42,340 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_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d612e3d3aaa54cbaaae78896c02f6ca9c3968df93584b0bde88897a60cfa04a [2023-11-19 05:09:42,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:09:42,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:09:42,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:09:42,759 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:09:42,759 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:09:42,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-19 05:09:46,418 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:09:47,173 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:09:47,175 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-19 05:09:47,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/data/4c501897d/2d1c71b0295f45fb992b248cc841f9dd/FLAG9ec72f693 [2023-11-19 05:09:47,275 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/data/4c501897d/2d1c71b0295f45fb992b248cc841f9dd [2023-11-19 05:09:47,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:09:47,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:09:47,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:47,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:09:47,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:09:47,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:47" (1/1) ... [2023-11-19 05:09:47,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f11f85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:47, skipping insertion in model container [2023-11-19 05:09:47,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:09:47" (1/1) ... [2023-11-19 05:09:47,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:09:50,848 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2023-11-19 05:09:50,863 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2023-11-19 05:09:50,864 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2023-11-19 05:09:50,865 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2023-11-19 05:09:50,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:50,979 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:09:51,189 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] [2023-11-19 05:09:51,191 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] [2023-11-19 05:09:51,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5255] [2023-11-19 05:09:51,195 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] [2023-11-19 05:09:51,195 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] [2023-11-19 05:09:51,211 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] [2023-11-19 05:09:51,216 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] [2023-11-19 05:09:51,218 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] [2023-11-19 05:09:51,220 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] [2023-11-19 05:09:51,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7057] [2023-11-19 05:09:51,547 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319618,319631] [2023-11-19 05:09:51,548 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319787,319800] [2023-11-19 05:09:51,549 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[319954,319967] [2023-11-19 05:09:51,549 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_a244978a-c1d0-4a86-b811-84692c771fa3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i[320122,320135] [2023-11-19 05:09:51,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:09:51,908 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:09:51,917 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:09:51,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51 WrapperNode [2023-11-19 05:09:51,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:09:51,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:51,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:09:51,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:09:51,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,307 INFO L138 Inliner]: procedures = 434, calls = 1832, calls flagged for inlining = 216, calls inlined = 199, statements flattened = 4823 [2023-11-19 05:09:52,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:09:52,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:09:52,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:09:52,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:09:52,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,617 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:09:52,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:09:52,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:09:52,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:09:52,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (1/1) ... [2023-11-19 05:09:52,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:09:52,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:09:52,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:09:52,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a244978a-c1d0-4a86-b811-84692c771fa3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:09:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2023-11-19 05:09:52,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2023-11-19 05:09:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 05:09:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 05:09:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:09:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:09:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:09:52,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:09:52,768 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 05:09:52,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 05:09:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:09:52,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:09:52,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:09:52,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:09:52,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:09:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:09:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:09:52,774 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:09:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_79 [2023-11-19 05:09:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_79 [2023-11-19 05:09:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2023-11-19 05:09:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2023-11-19 05:09:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:09:52,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:09:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:09:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:09:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:09:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:09:52,777 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:09:52,777 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:09:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:09:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2023-11-19 05:09:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2023-11-19 05:09:52,778 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:09:52,778 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:09:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:09:52,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:09:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:09:52,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:09:52,779 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-19 05:09:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-19 05:09:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2023-11-19 05:09:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2023-11-19 05:09:52,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:09:52,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:09:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:09:52,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 05:09:52,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 05:09:52,783 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:09:52,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:09:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:09:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2023-11-19 05:09:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2023-11-19 05:09:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:09:52,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:09:52,784 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2023-11-19 05:09:52,785 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2023-11-19 05:09:52,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:09:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:09:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:09:52,786 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:09:52,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:09:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:09:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 05:09:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 05:09:52,787 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:09:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:09:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:09:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:09:52,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:09:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:09:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:09:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:09:52,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:09:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:09:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:09:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:09:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:09:52,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:09:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:09:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:09:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:09:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:09:52,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-19 05:09:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-19 05:09:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:09:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:09:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:09:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:09:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:09:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:09:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:09:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:09:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:09:52,794 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:09:52,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 05:09:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 05:09:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 05:09:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:09:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:09:52,795 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:09:52,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:09:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:09:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:09:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2023-11-19 05:09:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2023-11-19 05:09:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 05:09:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 05:09:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:09:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:09:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:09:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:09:52,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:09:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:09:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-19 05:09:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-19 05:09:52,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:09:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:09:52,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:09:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:09:52,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-19 05:09:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-19 05:09:52,801 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2023-11-19 05:09:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2023-11-19 05:09:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:09:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:09:52,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:09:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:09:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:09:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:09:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 05:09:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 05:09:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_78 [2023-11-19 05:09:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_78 [2023-11-19 05:09:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:09:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:09:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-19 05:09:52,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-19 05:09:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:09:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2023-11-19 05:09:52,813 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2023-11-19 05:09:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:09:52,819 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:09:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:09:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:09:52,820 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:09:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:09:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:09:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:09:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:09:52,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 05:09:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:09:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:09:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-19 05:09:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-19 05:09:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:09:52,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:09:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-19 05:09:52,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-19 05:09:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:09:52,823 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:09:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:09:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:09:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 05:09:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 05:09:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2023-11-19 05:09:52,824 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2023-11-19 05:09:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2023-11-19 05:09:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2023-11-19 05:09:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:09:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2023-11-19 05:09:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2023-11-19 05:09:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:09:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:09:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:09:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:09:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 05:09:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 05:09:52,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 05:09:52,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 05:09:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:09:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:09:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:09:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-19 05:09:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2023-11-19 05:09:53,836 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:09:53,841 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:09:54,790 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:09:58,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:09:58,551 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:10:01,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:10:01,977 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:10:01,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:01 BoogieIcfgContainer [2023-11-19 05:10:01,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:10:01,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:10:01,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:10:01,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:10:01,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:09:47" (1/3) ... [2023-11-19 05:10:01,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6430e94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:01, skipping insertion in model container [2023-11-19 05:10:01,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:09:51" (2/3) ... [2023-11-19 05:10:01,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6430e94b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:10:01, skipping insertion in model container [2023-11-19 05:10:01,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:10:01" (3/3) ... [2023-11-19 05:10:02,001 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-fealnx.cil.i [2023-11-19 05:10:02,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:10:02,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 05:10:02,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:10:02,129 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;@7217b059, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:10:02,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 05:10:02,144 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) [2023-11-19 05:10:02,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 05:10:02,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:02,189 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:10:02,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:10:02,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:02,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1684142446, now seen corresponding path program 1 times [2023-11-19 05:10:02,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002811197] [2023-11-19 05:10:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 05:10:03,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:03,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002811197] [2023-11-19 05:10:03,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002811197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:03,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:03,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:10:03,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910389816] [2023-11-19 05:10:03,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:03,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:10:03,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:10:03,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:03,383 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) [2023-11-19 05:10:06,283 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 [] [2023-11-19 05:10:10,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:12,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:14,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:14,185 INFO L93 Difference]: Finished difference Result 3443 states and 5027 transitions. [2023-11-19 05:10:14,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:10:14,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-19 05:10:14,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:14,252 INFO L225 Difference]: With dead ends: 3443 [2023-11-19 05:10:14,252 INFO L226 Difference]: Without dead ends: 2266 [2023-11-19 05:10:14,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:14,274 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 1588 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s 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, 10.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:14,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 2825 Invalid, 574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2023-11-19 05:10:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2266 states. [2023-11-19 05:10:14,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2266 to 2262. [2023-11-19 05:10:14,649 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) [2023-11-19 05:10:14,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3241 transitions. [2023-11-19 05:10:14,683 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3241 transitions. Word has length 111 [2023-11-19 05:10:14,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:14,687 INFO L495 AbstractCegarLoop]: Abstraction has 2262 states and 3241 transitions. [2023-11-19 05:10:14,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:10:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3241 transitions. [2023-11-19 05:10:14,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 05:10:14,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:14,696 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] [2023-11-19 05:10:14,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:10:14,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:10:14,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:14,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2027918894, now seen corresponding path program 1 times [2023-11-19 05:10:14,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:14,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319979678] [2023-11-19 05:10:14,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:14,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 05:10:15,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:15,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319979678] [2023-11-19 05:10:15,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319979678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:15,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:15,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:10:15,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944540761] [2023-11-19 05:10:15,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:15,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:10:15,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:15,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:10:15,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:15,207 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) [2023-11-19 05:10:18,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:20,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:21,471 INFO L93 Difference]: Finished difference Result 6372 states and 9115 transitions. [2023-11-19 05:10:21,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:10:21,473 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 [2023-11-19 05:10:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:21,517 INFO L225 Difference]: With dead ends: 6372 [2023-11-19 05:10:21,518 INFO L226 Difference]: Without dead ends: 4129 [2023-11-19 05:10:21,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:21,532 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1403 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:21,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2853 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-19 05:10:21,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4129 states. [2023-11-19 05:10:21,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4129 to 4099. [2023-11-19 05:10:21,824 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) [2023-11-19 05:10:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4099 states to 4099 states and 5857 transitions. [2023-11-19 05:10:21,866 INFO L78 Accepts]: Start accepts. Automaton has 4099 states and 5857 transitions. Word has length 113 [2023-11-19 05:10:21,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:21,867 INFO L495 AbstractCegarLoop]: Abstraction has 4099 states and 5857 transitions. [2023-11-19 05:10:21,868 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) [2023-11-19 05:10:21,868 INFO L276 IsEmpty]: Start isEmpty. Operand 4099 states and 5857 transitions. [2023-11-19 05:10:21,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 05:10:21,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:21,871 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] [2023-11-19 05:10:21,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:10:21,872 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:10:21,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:21,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1125518030, now seen corresponding path program 1 times [2023-11-19 05:10:21,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:21,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817501624] [2023-11-19 05:10:21,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:21,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:10:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-19 05:10:22,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:10:22,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817501624] [2023-11-19 05:10:22,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817501624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:10:22,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:10:22,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:10:22,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109267973] [2023-11-19 05:10:22,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:10:22,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:10:22,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:10:22,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:10:22,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:22,110 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) [2023-11-19 05:10:25,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:29,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:10:30,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:10:30,643 INFO L93 Difference]: Finished difference Result 11787 states and 16793 transitions. [2023-11-19 05:10:30,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:10:30,644 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 117 [2023-11-19 05:10:30,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:10:30,717 INFO L225 Difference]: With dead ends: 11787 [2023-11-19 05:10:30,718 INFO L226 Difference]: Without dead ends: 7707 [2023-11-19 05:10:30,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:10:30,743 INFO L413 NwaCegarLoop]: 1415 mSDtfsCounter, 1464 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:10:30,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 2782 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 587 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2023-11-19 05:10:30,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7707 states. [2023-11-19 05:10:31,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7707 to 7675. [2023-11-19 05:10:31,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7675 states, 4470 states have (on average 1.2686800894854586) internal successors, (5671), 4608 states have internal predecessors, (5671), 2597 states have call successors, (2597), 610 states have call predecessors, (2597), 605 states have return successors, (2635), 2538 states have call predecessors, (2635), 2593 states have call successors, (2635) [2023-11-19 05:10:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7675 states to 7675 states and 10903 transitions. [2023-11-19 05:10:31,431 INFO L78 Accepts]: Start accepts. Automaton has 7675 states and 10903 transitions. Word has length 117 [2023-11-19 05:10:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:10:31,434 INFO L495 AbstractCegarLoop]: Abstraction has 7675 states and 10903 transitions. [2023-11-19 05:10:31,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-19 05:10:31,435 INFO L276 IsEmpty]: Start isEmpty. Operand 7675 states and 10903 transitions. [2023-11-19 05:10:31,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 05:10:31,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:10:31,439 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] [2023-11-19 05:10:31,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:10:31,440 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:10:31,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:10:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1664634281, now seen corresponding path program 1 times [2023-11-19 05:10:31,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:10:31,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395091198] [2023-11-19 05:10:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:10:31,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:10:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat