./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-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/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_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/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-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/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_4937b3fa-f744-449a-971e-5452ab4d8380/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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:17:13,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:17:13,992 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:17:13,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:17:13,998 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:17:14,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:17:14,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:17:14,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:17:14,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:17:14,027 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:17:14,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:17:14,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:17:14,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:17:14,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:17:14,031 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:17:14,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:17:14,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:17:14,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:17:14,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:17:14,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:17:14,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:17:14,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:17:14,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:17:14,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:17:14,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:17:14,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:17:14,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:17:14,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:17:14,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:17:14,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:17:14,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:17:14,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:17:14,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:17:14,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:17:14,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:17:14,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:17:14,042 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:17:14,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:17:14,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:17:14,043 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_4937b3fa-f744-449a-971e-5452ab4d8380/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2023-11-21 22:17:14,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:17:14,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:17:14,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:17:14,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:17:14,324 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:17:14,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-21 22:17:17,295 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:17:17,940 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:17:17,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-21 22:17:17,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/data/793a33626/d888e9c533b44ed8929bad03f2435bfd/FLAG54b5f7d99 [2023-11-21 22:17:18,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/data/793a33626/d888e9c533b44ed8929bad03f2435bfd [2023-11-21 22:17:18,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:17:18,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:17:18,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:17:18,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:17:18,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:17:18,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:18" (1/1) ... [2023-11-21 22:17:18,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f67ebbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:18, skipping insertion in model container [2023-11-21 22:17:18,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:17:18" (1/1) ... [2023-11-21 22:17:18,183 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:17:21,103 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2023-11-21 22:17:21,107 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2023-11-21 22:17:21,108 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2023-11-21 22:17:21,109 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2023-11-21 22:17:21,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:17:21,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:17:21,330 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"); [5252] [2023-11-21 22:17:21,332 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)); [5259] [2023-11-21 22:17:21,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5266] [2023-11-21 22:17:21,334 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)); [5302-5303] [2023-11-21 22:17:21,334 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"); [5308-5310] [2023-11-21 22:17:21,347 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)); [5526-5527] [2023-11-21 22:17:21,351 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)); [5560-5561] [2023-11-21 22:17:21,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7910] [2023-11-21 22:17:21,616 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2023-11-21 22:17:21,617 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2023-11-21 22:17:21,618 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2023-11-21 22:17:21,618 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_4937b3fa-f744-449a-971e-5452ab4d8380/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2023-11-21 22:17:21,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:17:21,875 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:17:21,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21 WrapperNode [2023-11-21 22:17:21,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:17:21,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:17:21,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:17:21,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:17:21,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:21,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:22,177 INFO L138 Inliner]: procedures = 430, calls = 1731, calls flagged for inlining = 202, calls inlined = 186, statements flattened = 4773 [2023-11-21 22:17:22,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:17:22,178 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:17:22,178 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:17:22,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:17:22,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:22,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:22,231 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,670 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:17:23,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,671 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,891 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:17:23,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:17:23,962 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:17:23,962 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:17:23,963 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (1/1) ... [2023-11-21 22:17:23,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:17:23,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:17:24,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:17:24,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4937b3fa-f744-449a-971e-5452ab4d8380/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:17:24,057 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-21 22:17:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-21 22:17:24,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 22:17:24,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 22:17:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:17:24,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:17:24,059 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 22:17:24,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 22:17:24,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:17:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:17:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 22:17:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 22:17:24,061 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-21 22:17:24,061 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-21 22:17:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 22:17:24,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 22:17:24,062 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 22:17:24,063 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 22:17:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-21 22:17:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-21 22:17:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-21 22:17:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-21 22:17:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-21 22:17:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-21 22:17:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-21 22:17:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-21 22:17:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-21 22:17:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-21 22:17:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-21 22:17:24,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-21 22:17:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-21 22:17:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-21 22:17:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 22:17:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 22:17:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 22:17:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 22:17:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-21 22:17:24,067 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-21 22:17:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 22:17:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 22:17:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 22:17:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 22:17:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 22:17:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 22:17:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:17:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-21 22:17:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-21 22:17:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-21 22:17:24,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-21 22:17:24,069 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 22:17:24,070 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 22:17:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-21 22:17:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-21 22:17:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:17:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:17:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:17:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-21 22:17:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-21 22:17:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:17:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 22:17:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 22:17:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:17:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 22:17:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 22:17:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:17:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:17:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 22:17:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 22:17:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 22:17:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 22:17:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 22:17:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 22:17:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-21 22:17:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-21 22:17:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 22:17:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 22:17:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:17:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:17:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-21 22:17:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-21 22:17:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 22:17:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 22:17:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-21 22:17:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-21 22:17:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:17:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 22:17:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 22:17:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 22:17:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 22:17:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:17:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 22:17:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 22:17:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:17:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:17:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:17:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-21 22:17:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-21 22:17:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:17:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:17:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-21 22:17:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-21 22:17:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:17:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:17:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-21 22:17:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-21 22:17:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 22:17:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 22:17:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 22:17:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 22:17:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 22:17:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 22:17:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-21 22:17:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-21 22:17:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-21 22:17:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-21 22:17:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-21 22:17:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-21 22:17:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-21 22:17:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-21 22:17:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-21 22:17:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-21 22:17:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-21 22:17:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-21 22:17:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:17:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:17:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-21 22:17:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-21 22:17:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:17:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:17:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:17:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:17:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-21 22:17:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-21 22:17:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 22:17:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 22:17:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 22:17:24,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 22:17:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:17:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:17:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 22:17:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 22:17:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 22:17:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 22:17:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-21 22:17:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-21 22:17:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-21 22:17:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-21 22:17:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:17:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-21 22:17:24,099 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-21 22:17:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:17:24,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-21 22:17:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-21 22:17:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-21 22:17:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-21 22:17:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-21 22:17:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-21 22:17:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:17:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:17:24,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:17:24,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 22:17:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 22:17:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-21 22:17:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-21 22:17:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 22:17:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 22:17:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 22:17:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 22:17:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-21 22:17:24,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-21 22:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-21 22:17:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-21 22:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-21 22:17:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-21 22:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-21 22:17:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-21 22:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-21 22:17:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-21 22:17:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 22:17:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 22:17:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 22:17:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 22:17:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-21 22:17:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-21 22:17:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:17:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-21 22:17:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-21 22:17:24,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:17:24,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:17:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-21 22:17:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-21 22:17:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-21 22:17:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-21 22:17:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-21 22:17:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-21 22:17:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-21 22:17:24,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-21 22:17:24,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-21 22:17:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-21 22:17:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 22:17:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 22:17:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-21 22:17:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-21 22:17:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 22:17:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 22:17:24,105 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-21 22:17:24,105 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-21 22:17:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-21 22:17:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:17:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-21 22:17:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-21 22:17:24,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 22:17:24,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 22:17:24,825 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:17:24,830 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:17:25,883 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:17:30,709 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 22:17:30,824 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:17:34,722 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:17:34,728 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:17:34,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:34 BoogieIcfgContainer [2023-11-21 22:17:34,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:17:34,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:17:34,738 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:17:34,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:17:34,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:17:18" (1/3) ... [2023-11-21 22:17:34,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b49b5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:34, skipping insertion in model container [2023-11-21 22:17:34,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:17:21" (2/3) ... [2023-11-21 22:17:34,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b49b5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:17:34, skipping insertion in model container [2023-11-21 22:17:34,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:17:34" (3/3) ... [2023-11-21 22:17:34,747 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-21 22:17:34,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:17:34,769 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 22:17:34,877 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:17:34,884 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;@108ccaf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:17:34,885 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 22:17:34,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 1355 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 814 states have internal predecessors, (996), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) [2023-11-21 22:17:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-21 22:17:34,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:17:34,943 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:34,944 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 22:17:34,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:34,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1506012229, now seen corresponding path program 1 times [2023-11-21 22:17:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:34,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632287204] [2023-11-21 22:17:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:34,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:17:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:17:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:17:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:17:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:17:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:17:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:17:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:17:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 22:17:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-21 22:17:35,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:35,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632287204] [2023-11-21 22:17:35,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632287204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:35,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:35,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:17:35,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105490624] [2023-11-21 22:17:35,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:35,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:17:35,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:36,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:36,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:36,012 INFO L87 Difference]: Start difference. First operand has 1355 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 814 states have internal predecessors, (996), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 22:17:44,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:17:44,811 INFO L93 Difference]: Finished difference Result 4069 states and 5908 transitions. [2023-11-21 22:17:44,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:17:44,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-21 22:17:44,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:17:44,888 INFO L225 Difference]: With dead ends: 4069 [2023-11-21 22:17:44,888 INFO L226 Difference]: Without dead ends: 2721 [2023-11-21 22:17:44,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 22:17:44,916 INFO L413 NwaCegarLoop]: 1106 mSDtfsCounter, 2266 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 1324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 3675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1324 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:17:44,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2691 Valid, 2410 Invalid, 3675 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1324 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-21 22:17:44,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2023-11-21 22:17:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2593. [2023-11-21 22:17:45,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 1510 states have (on average 1.2629139072847682) internal successors, (1907), 1567 states have internal predecessors, (1907), 890 states have call successors, (890), 191 states have call predecessors, (890), 190 states have return successors, (886), 880 states have call predecessors, (886), 886 states have call successors, (886) [2023-11-21 22:17:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3683 transitions. [2023-11-21 22:17:45,358 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3683 transitions. Word has length 101 [2023-11-21 22:17:45,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:17:45,361 INFO L495 AbstractCegarLoop]: Abstraction has 2593 states and 3683 transitions. [2023-11-21 22:17:45,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 22:17:45,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3683 transitions. [2023-11-21 22:17:45,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-21 22:17:45,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:17:45,371 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:17:45,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:17:45,372 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 22:17:45,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:45,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1767329677, now seen corresponding path program 1 times [2023-11-21 22:17:45,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:45,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884897670] [2023-11-21 22:17:45,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:45,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:17:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:17:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:17:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:17:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:17:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:17:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:17:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:17:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-21 22:17:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-21 22:17:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-21 22:17:45,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:45,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884897670] [2023-11-21 22:17:45,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884897670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:45,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:45,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:17:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921834306] [2023-11-21 22:17:45,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:45,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:17:45,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:45,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:45,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:45,878 INFO L87 Difference]: Start difference. First operand 2593 states and 3683 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 22:17:54,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:17:54,356 INFO L93 Difference]: Finished difference Result 7367 states and 10519 transitions. [2023-11-21 22:17:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:17:54,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 105 [2023-11-21 22:17:54,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:17:54,407 INFO L225 Difference]: With dead ends: 7367 [2023-11-21 22:17:54,408 INFO L226 Difference]: Without dead ends: 4791 [2023-11-21 22:17:54,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 22:17:54,425 INFO L413 NwaCegarLoop]: 1134 mSDtfsCounter, 1843 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 1183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 3569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1183 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:17:54,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 2467 Invalid, 3569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1183 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-21 22:17:54,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4791 states. [2023-11-21 22:17:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4791 to 4532. [2023-11-21 22:17:54,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4532 states, 2613 states have (on average 1.2537313432835822) internal successors, (3276), 2717 states have internal predecessors, (3276), 1563 states have call successors, (1563), 360 states have call predecessors, (1563), 353 states have return successors, (1579), 1530 states have call predecessors, (1579), 1559 states have call successors, (1579) [2023-11-21 22:17:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4532 states to 4532 states and 6418 transitions. [2023-11-21 22:17:54,760 INFO L78 Accepts]: Start accepts. Automaton has 4532 states and 6418 transitions. Word has length 105 [2023-11-21 22:17:54,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:17:54,762 INFO L495 AbstractCegarLoop]: Abstraction has 4532 states and 6418 transitions. [2023-11-21 22:17:54,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 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 22:17:54,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4532 states and 6418 transitions. [2023-11-21 22:17:54,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-21 22:17:54,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:17:54,776 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:17:54,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:17:54,776 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 22:17:54,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:17:54,777 INFO L85 PathProgramCache]: Analyzing trace with hash 17975834, now seen corresponding path program 1 times [2023-11-21 22:17:54,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:17:54,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442870743] [2023-11-21 22:17:54,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:17:54,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:17:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:17:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:17:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:17:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:17:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:17:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:17:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:17:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:17:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-21 22:17:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-21 22:17:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:17:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-21 22:17:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:17:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-21 22:17:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-21 22:17:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:17:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:17:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-11-21 22:17:55,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:17:55,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442870743] [2023-11-21 22:17:55,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442870743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:17:55,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:17:55,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:17:55,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057393346] [2023-11-21 22:17:55,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:17:55,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:17:55,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:17:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:17:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:17:55,468 INFO L87 Difference]: Start difference. First operand 4532 states and 6418 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19)