./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 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/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_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:40:35,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:35,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:40:35,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:35,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:35,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:35,754 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:35,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:35,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:35,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:35,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:35,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:35,758 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:35,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:35,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:35,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:35,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:35,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:35,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:35,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:35,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:35,762 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:35,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:35,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:35,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:35,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:35,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:35,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:35,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:35,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:35,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:35,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:35,767 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:35,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:35,768 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:35,768 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:35,768 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2023-11-19 07:40:36,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:36,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:36,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:36,069 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:36,070 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:36,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 07:40:39,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:40,162 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:40,162 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 07:40:40,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/data/e0f1a58ec/f4ac62ff426d4ef8a2a9b923fd090520/FLAG9788067cc [2023-11-19 07:40:40,222 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/data/e0f1a58ec/f4ac62ff426d4ef8a2a9b923fd090520 [2023-11-19 07:40:40,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:40,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:40,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:40,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:40,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:40,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:40" (1/1) ... [2023-11-19 07:40:40,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9ae94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:40, skipping insertion in model container [2023-11-19 07:40:40,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:40" (1/1) ... [2023-11-19 07:40:40,445 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:43,815 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:43,821 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:43,822 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:43,823 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:43,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:43,941 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:44,170 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] [2023-11-19 07:40:44,172 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] [2023-11-19 07:40:44,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5266] [2023-11-19 07:40:44,174 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] [2023-11-19 07:40:44,175 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] [2023-11-19 07:40:44,193 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] [2023-11-19 07:40:44,198 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] [2023-11-19 07:40:44,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7910] [2023-11-19 07:40:44,500 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:44,501 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:44,502 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:44,503 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_28a5f81c-885f-4858-bc70-d5d5d308e97c/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] [2023-11-19 07:40:44,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:44,798 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:44,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44 WrapperNode [2023-11-19 07:40:44,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:44,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:44,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:44,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:44,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:44,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,246 INFO L138 Inliner]: procedures = 430, calls = 1731, calls flagged for inlining = 202, calls inlined = 186, statements flattened = 4773 [2023-11-19 07:40:45,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:45,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:45,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:45,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:45,260 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,286 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,286 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,527 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:45,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:45,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:45,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:45,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (1/1) ... [2023-11-19 07:40:45,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:45,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:45,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:45,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28a5f81c-885f-4858-bc70-d5d5d308e97c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:45,734 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 07:40:45,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 07:40:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 07:40:45,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 07:40:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:40:45,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:40:45,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 07:40:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 07:40:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:40:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:40:45,736 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 07:40:45,736 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 07:40:45,737 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-19 07:40:45,737 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-19 07:40:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 07:40:45,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 07:40:45,738 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 07:40:45,738 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 07:40:45,739 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-19 07:40:45,740 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-19 07:40:45,740 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-19 07:40:45,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-19 07:40:45,741 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-19 07:40:45,743 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-19 07:40:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 07:40:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 07:40:45,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 07:40:45,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 07:40:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-19 07:40:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-19 07:40:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-19 07:40:45,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-19 07:40:45,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 07:40:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 07:40:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 07:40:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 07:40:45,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 07:40:45,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 07:40:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 07:40:45,747 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 07:40:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 07:40:45,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 07:40:45,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 07:40:45,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 07:40:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:40:45,748 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-19 07:40:45,748 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-19 07:40:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-19 07:40:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-19 07:40:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 07:40:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 07:40:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 07:40:45,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 07:40:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:40:45,750 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 07:40:45,751 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 07:40:45,752 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-19 07:40:45,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-19 07:40:45,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:40:45,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 07:40:45,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 07:40:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:40:45,755 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 07:40:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 07:40:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:40:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:40:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 07:40:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 07:40:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 07:40:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 07:40:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 07:40:45,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 07:40:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-19 07:40:45,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-19 07:40:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 07:40:45,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 07:40:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 07:40:45,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 07:40:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-19 07:40:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-19 07:40:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 07:40:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 07:40:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-19 07:40:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-19 07:40:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:40:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 07:40:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 07:40:45,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 07:40:45,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 07:40:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 07:40:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 07:40:45,763 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 07:40:45,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 07:40:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:40:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-19 07:40:45,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-19 07:40:45,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:40:45,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:40:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-19 07:40:45,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-19 07:40:45,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:40:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:40:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-19 07:40:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-19 07:40:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:40:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:40:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 07:40:45,821 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 07:40:45,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 07:40:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 07:40:45,822 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-19 07:40:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-19 07:40:45,822 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-19 07:40:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-19 07:40:45,822 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-19 07:40:45,822 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-19 07:40:45,823 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 07:40:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 07:40:45,823 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-19 07:40:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-19 07:40:45,823 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 07:40:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 07:40:45,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:45,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-19 07:40:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-19 07:40:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:40:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:40:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:40:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:40:45,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-19 07:40:45,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-19 07:40:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 07:40:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 07:40:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 07:40:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 07:40:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:40:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:40:45,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 07:40:45,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 07:40:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 07:40:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 07:40:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-19 07:40:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-19 07:40:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-19 07:40:45,826 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-19 07:40:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:40:45,826 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 07:40:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 07:40:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:40:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-19 07:40:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2023-11-19 07:40:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-19 07:40:45,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-19 07:40:45,827 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-19 07:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-19 07:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 07:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 07:40:45,828 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:40:45,828 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:40:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 07:40:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 07:40:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 07:40:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 07:40:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 07:40:45,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 07:40:45,829 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 07:40:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 07:40:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-19 07:40:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-19 07:40:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-19 07:40:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-19 07:40:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-19 07:40:45,830 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-19 07:40:45,830 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 07:40:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 07:40:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 07:40:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 07:40:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 07:40:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 07:40:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:40:45,831 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 07:40:45,831 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 07:40:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:40:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:40:45,844 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-19 07:40:45,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-19 07:40:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-19 07:40:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-19 07:40:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-19 07:40:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-19 07:40:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-19 07:40:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-19 07:40:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-19 07:40:45,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2023-11-19 07:40:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 07:40:45,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 07:40:45,846 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-19 07:40:45,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-19 07:40:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 07:40:45,847 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 07:40:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-19 07:40:45,847 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-19 07:40:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-19 07:40:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-19 07:40:45,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-19 07:40:45,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 07:40:45,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 07:40:46,752 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:46,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:48,372 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:40:54,220 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 07:40:54,352 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:54,373 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:54,373 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:40:54,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:54 BoogieIcfgContainer [2023-11-19 07:40:54,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:54,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:54,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:54,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:54,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:40" (1/3) ... [2023-11-19 07:40:54,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c92b4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:54, skipping insertion in model container [2023-11-19 07:40:54,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:44" (2/3) ... [2023-11-19 07:40:54,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c92b4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:54, skipping insertion in model container [2023-11-19 07:40:54,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:54" (3/3) ... [2023-11-19 07:40:54,394 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-19 07:40:54,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:54,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 07:40:54,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:54,505 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;@2532304d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:54,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 07:40:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 1974 states, 1403 states have (on average 1.3442622950819672) internal successors, (1886), 1433 states have internal predecessors, (1886), 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) [2023-11-19 07:40:54,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 07:40:54,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:40:54,543 INFO L195 NwaCegarLoop]: trace histogram [9, 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, 1, 1] [2023-11-19 07:40:54,544 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 07:40:54,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:54,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1809371023, now seen corresponding path program 1 times [2023-11-19 07:40:54,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:54,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257282812] [2023-11-19 07:40:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:54,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:40:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:40:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:40:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:40:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:40:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:40:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:40:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:40:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:40:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:40:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:40:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 07:40:55,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257282812] [2023-11-19 07:40:55,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257282812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:55,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:55,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:40:55,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338847853] [2023-11-19 07:40:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:55,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:40:55,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:55,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:40:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:40:55,917 INFO L87 Difference]: Start difference. First operand has 1974 states, 1403 states have (on average 1.3442622950819672) internal successors, (1886), 1433 states have internal predecessors, (1886), 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 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-19 07:41:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:03,672 INFO L93 Difference]: Finished difference Result 5922 states and 8716 transitions. [2023-11-19 07:41:03,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:03,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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 116 [2023-11-19 07:41:03,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:03,768 INFO L225 Difference]: With dead ends: 5922 [2023-11-19 07:41:03,768 INFO L226 Difference]: Without dead ends: 3959 [2023-11-19 07:41:03,796 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 [2023-11-19 07:41:03,801 INFO L413 NwaCegarLoop]: 1782 mSDtfsCounter, 3875 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 2567 mSolverCounterSat, 1323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4300 SdHoareTripleChecker+Valid, 4387 SdHoareTripleChecker+Invalid, 3890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1323 IncrementalHoareTripleChecker+Valid, 2567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:03,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4300 Valid, 4387 Invalid, 3890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1323 Valid, 2567 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-19 07:41:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3959 states. [2023-11-19 07:41:04,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3959 to 3807. [2023-11-19 07:41:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 2724 states have (on average 1.3182819383259912) internal successors, (3591), 2781 states have internal predecessors, (3591), 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) [2023-11-19 07:41:04,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 5367 transitions. [2023-11-19 07:41:04,230 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 5367 transitions. Word has length 116 [2023-11-19 07:41:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:04,233 INFO L495 AbstractCegarLoop]: Abstraction has 3807 states and 5367 transitions. [2023-11-19 07:41:04,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-19 07:41:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 5367 transitions. [2023-11-19 07:41:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-19 07:41:04,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:04,249 INFO L195 NwaCegarLoop]: trace histogram [9, 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:04,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:41:04,250 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 07:41:04,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:04,251 INFO L85 PathProgramCache]: Analyzing trace with hash 822147358, now seen corresponding path program 1 times [2023-11-19 07:41:04,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:04,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360361464] [2023-11-19 07:41:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:04,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:41:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:41:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:41:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:41:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:41:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:41:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:41:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:41:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:41:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-19 07:41:04,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:04,894 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-11-19 07:41:04,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:04,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360361464] [2023-11-19 07:41:04,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360361464] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:04,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:04,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:04,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744484419] [2023-11-19 07:41:04,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:04,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:04,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:04,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:04,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:04,906 INFO L87 Difference]: Start difference. First operand 3807 states and 5367 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-19 07:41:11,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:11,734 INFO L93 Difference]: Finished difference Result 10783 states and 15193 transitions. [2023-11-19 07:41:11,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:11,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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 120 [2023-11-19 07:41:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:11,793 INFO L225 Difference]: With dead ends: 10783 [2023-11-19 07:41:11,793 INFO L226 Difference]: Without dead ends: 6997 [2023-11-19 07:41:11,810 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 [2023-11-19 07:41:11,811 INFO L413 NwaCegarLoop]: 1815 mSDtfsCounter, 3112 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 1192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 4452 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1192 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:11,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 4452 Invalid, 3883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1192 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-19 07:41:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6997 states. [2023-11-19 07:41:12,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6997 to 6694. [2023-11-19 07:41:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6694 states, 4775 states have (on average 1.3017801047120419) internal successors, (6216), 4879 states have internal predecessors, (6216), 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) [2023-11-19 07:41:12,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6694 states to 6694 states and 9358 transitions. [2023-11-19 07:41:12,210 INFO L78 Accepts]: Start accepts. Automaton has 6694 states and 9358 transitions. Word has length 120 [2023-11-19 07:41:12,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:12,211 INFO L495 AbstractCegarLoop]: Abstraction has 6694 states and 9358 transitions. [2023-11-19 07:41:12,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-19 07:41:12,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6694 states and 9358 transitions. [2023-11-19 07:41:12,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-19 07:41:12,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:12,224 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:12,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:41:12,224 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 07:41:12,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:12,225 INFO L85 PathProgramCache]: Analyzing trace with hash 246921754, now seen corresponding path program 1 times [2023-11-19 07:41:12,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:12,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113690755] [2023-11-19 07:41:12,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:12,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:41:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:41:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:41:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:41:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:41:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:41:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:41:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:41:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:41:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-19 07:41:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-19 07:41:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:41:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:41:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 07:41:12,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:41:12,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:41:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2023-11-19 07:41:12,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:12,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113690755] [2023-11-19 07:41:12,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113690755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:12,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:12,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:12,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72022104] [2023-11-19 07:41:12,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:12,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:12,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:12,856 INFO L87 Difference]: Start difference. First operand 6694 states and 9358 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-11-19 07:41:19,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:19,513 INFO L93 Difference]: Finished difference Result 19836 states and 27856 transitions. [2023-11-19 07:41:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:19,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) Word has length 170 [2023-11-19 07:41:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:19,626 INFO L225 Difference]: With dead ends: 19836 [2023-11-19 07:41:19,627 INFO L226 Difference]: Without dead ends: 13163 [2023-11-19 07:41:19,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:19,667 INFO L413 NwaCegarLoop]: 1796 mSDtfsCounter, 3657 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 2556 mSolverCounterSat, 1336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4060 SdHoareTripleChecker+Valid, 4375 SdHoareTripleChecker+Invalid, 3892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1336 IncrementalHoareTripleChecker+Valid, 2556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:19,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4060 Valid, 4375 Invalid, 3892 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1336 Valid, 2556 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-19 07:41:19,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13163 states. [2023-11-19 07:41:20,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13163 to 12584. [2023-11-19 07:41:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12584 states, 8945 states have (on average 1.302850754611515) internal successors, (11654), 9145 states have internal predecessors, (11654), 2943 states have call successors, (2943), 708 states have call predecessors, (2943), 693 states have return successors, (2979), 2870 states have call predecessors, (2979), 2939 states have call successors, (2979) [2023-11-19 07:41:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12584 states to 12584 states and 17576 transitions. [2023-11-19 07:41:20,521 INFO L78 Accepts]: Start accepts. Automaton has 12584 states and 17576 transitions. Word has length 170 [2023-11-19 07:41:20,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:20,522 INFO L495 AbstractCegarLoop]: Abstraction has 12584 states and 17576 transitions. [2023-11-19 07:41:20,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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) [2023-11-19 07:41:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 12584 states and 17576 transitions. [2023-11-19 07:41:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 07:41:20,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:20,530 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:20,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:41:20,531 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 07:41:20,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1509260626, now seen corresponding path program 1 times [2023-11-19 07:41:20,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:20,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217478097] [2023-11-19 07:41:20,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:20,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:41:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:21,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:41:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:41:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25