./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:50:44,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:50:44,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:50:44,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:50:44,881 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:50:44,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:50:44,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:50:44,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:50:44,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:50:44,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:50:44,909 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:50:44,909 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:50:44,910 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:50:44,910 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:50:44,911 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:50:44,912 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:50:44,912 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:50:44,913 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:50:44,914 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:50:44,914 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:50:44,915 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:50:44,916 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:50:44,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:50:44,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:50:44,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:50:44,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:50:44,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:50:44,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:50:44,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:50:44,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:50:44,921 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:50:44,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:50:44,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:50:44,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:44,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:50:44,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:50:44,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:50:44,924 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:50:44,924 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:50:44,924 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:50:44,925 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:50:44,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:50:44,925 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b230ba173626e1a1717879ee489b2ae4510c44810563ac66116e22604ac558a2 [2023-11-12 00:50:45,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:50:45,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:50:45,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:50:45,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:50:45,318 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:50:45,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-12 00:50:48,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:50:49,271 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:50:49,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-12 00:50:49,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/data/f4a22c81c/1c31b68139d94167a3b8dd04fbc51538/FLAG3cf573501 [2023-11-12 00:50:49,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/data/f4a22c81c/1c31b68139d94167a3b8dd04fbc51538 [2023-11-12 00:50:49,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:50:49,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:50:49,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:49,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:50:49,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:50:49,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ee41da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:49, skipping insertion in model container [2023-11-12 00:50:49,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:50:49" (1/1) ... [2023-11-12 00:50:49,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:50:52,541 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2023-11-12 00:50:52,546 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2023-11-12 00:50:52,553 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2023-11-12 00:50:52,554 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2023-11-12 00:50:52,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:52,685 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:50:52,813 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"); [5242] [2023-11-12 00:50:52,815 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)); [5249] [2023-11-12 00:50:52,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5256] [2023-11-12 00:50:52,818 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)); [5293-5294] [2023-11-12 00:50:52,819 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"); [5299-5301] [2023-11-12 00:50:52,842 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)); [5454-5455] [2023-11-12 00:50:52,844 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)); [5488-5489] [2023-11-12 00:50:52,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7248] [2023-11-12 00:50:53,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7500] [2023-11-12 00:50:53,134 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309274,309287] [2023-11-12 00:50:53,135 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309443,309456] [2023-11-12 00:50:53,136 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309610,309623] [2023-11-12 00:50:53,136 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_9a12771d-3f14-4dc3-980a-7d0f35cbc133/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[309778,309791] [2023-11-12 00:50:53,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:50:53,342 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:50:53,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53 WrapperNode [2023-11-12 00:50:53,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:50:53,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:53,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:50:53,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:50:53,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,672 INFO L138 Inliner]: procedures = 412, calls = 1715, calls flagged for inlining = 195, calls inlined = 178, statements flattened = 4723 [2023-11-12 00:50:53,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:50:53,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:50:53,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:50:53,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:50:53,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,867 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:53,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:54,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:50:54,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:50:54,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:50:54,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:50:54,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (1/1) ... [2023-11-12 00:50:54,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:50:54,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:50:54,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:50:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a12771d-3f14-4dc3-980a-7d0f35cbc133/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:50:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:50:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:50:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:50:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:50:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:50:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:50:54,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:50:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:50:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:50:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:50:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:50:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:50:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:50:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:50:54,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2023-11-12 00:50:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2023-11-12 00:50:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:50:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:50:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:50:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:50:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-12 00:50:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-12 00:50:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-12 00:50:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-12 00:50:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2023-11-12 00:50:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2023-11-12 00:50:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:50:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:50:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:50:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:50:54,179 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:50:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:50:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:50:54,180 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:50:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:50:54,180 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:50:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:50:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:50:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-12 00:50:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-12 00:50:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:50:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2023-11-12 00:50:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2023-11-12 00:50:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:50:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:50:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:50:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:50:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:50:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:50:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:50:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:50:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:50:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:50:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2023-11-12 00:50:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2023-11-12 00:50:54,186 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2023-11-12 00:50:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2023-11-12 00:50:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:50:54,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-12 00:50:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-12 00:50:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:50:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:50:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:50:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:50:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:50:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:50:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:50:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:50:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:50:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:50:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:50:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:50:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:50:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:50:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2023-11-12 00:50:54,193 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2023-11-12 00:50:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:50:54,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:50:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2023-11-12 00:50:54,193 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2023-11-12 00:50:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:50:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:50:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:50:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:50:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:50:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:50:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-12 00:50:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-12 00:50:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:50:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:50:54,195 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:50:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:50:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:50:54,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:50:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:50:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:50:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:50:54,197 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:50:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:50:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:50:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:50:54,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:50:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:50:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-12 00:50:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-12 00:50:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:50:54,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:50:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2023-11-12 00:50:54,201 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2023-11-12 00:50:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2023-11-12 00:50:54,201 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2023-11-12 00:50:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:50:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:50:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:50:54,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:50:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:50:54,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:50:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:50:54,203 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:50:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-12 00:50:54,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-12 00:50:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:50:54,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:50:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:50:54,204 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:50:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-12 00:50:54,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-12 00:50:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:50:54,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:50:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:50:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:50:54,207 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-12 00:50:54,207 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-12 00:50:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-12 00:50:54,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-12 00:50:54,212 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:50:54,213 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:50:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:50:54,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:50:54,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:50:54,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:50:54,216 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:50:54,216 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:50:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:50:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:50:54,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:50:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:50:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:50:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:50:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:50:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2023-11-12 00:50:54,224 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2023-11-12 00:50:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:50:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:50:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2023-11-12 00:50:54,225 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2023-11-12 00:50:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-12 00:50:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-12 00:50:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2023-11-12 00:50:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2023-11-12 00:50:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-12 00:50:54,226 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-12 00:50:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:50:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:50:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:50:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-12 00:50:54,227 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-12 00:50:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2023-11-12 00:50:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2023-11-12 00:50:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:50:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:50:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:50:54,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:50:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-12 00:50:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-12 00:50:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2023-11-12 00:50:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2023-11-12 00:50:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:50:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:50:54,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:50:54,999 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:50:55,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:50:55,582 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:50:59,140 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:50:59,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:01,882 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:01,883 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:51:01,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:01 BoogieIcfgContainer [2023-11-12 00:51:01,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:01,891 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:01,891 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:01,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:01,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:50:49" (1/3) ... [2023-11-12 00:51:01,896 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b246d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:01, skipping insertion in model container [2023-11-12 00:51:01,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:50:53" (2/3) ... [2023-11-12 00:51:01,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b246d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:01, skipping insertion in model container [2023-11-12 00:51:01,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:01" (3/3) ... [2023-11-12 00:51:01,898 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-kernel-locking-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-12 00:51:01,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:01,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:51:02,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:02,048 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6439fef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:02,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:51:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand has 1206 states, 692 states have (on average 1.2947976878612717) internal successors, (896), 715 states have internal predecessors, (896), 430 states have call successors, (430), 82 states have call predecessors, (430), 81 states have return successors, (424), 418 states have call predecessors, (424), 424 states have call successors, (424) [2023-11-12 00:51:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 00:51:02,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:02,100 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:02,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:51:02,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1247425766, now seen corresponding path program 1 times [2023-11-12 00:51:02,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:02,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723112890] [2023-11-12 00:51:02,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:02,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:51:03,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723112890] [2023-11-12 00:51:03,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723112890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:03,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:03,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:03,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242934980] [2023-11-12 00:51:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:03,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:03,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:03,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:03,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:03,111 INFO L87 Difference]: Start difference. First operand has 1206 states, 692 states have (on average 1.2947976878612717) internal successors, (896), 715 states have internal predecessors, (896), 430 states have call successors, (430), 82 states have call predecessors, (430), 81 states have return successors, (424), 418 states have call predecessors, (424), 424 states have call successors, (424) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:51:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:05,613 INFO L93 Difference]: Finished difference Result 3489 states and 5124 transitions. [2023-11-12 00:51:05,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:05,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-12 00:51:05,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:05,659 INFO L225 Difference]: With dead ends: 3489 [2023-11-12 00:51:05,659 INFO L226 Difference]: Without dead ends: 2292 [2023-11-12 00:51:05,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:05,695 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 1625 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 2957 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:05,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 2957 Invalid, 511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 00:51:05,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2023-11-12 00:51:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2288. [2023-11-12 00:51:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 1324 states have (on average 1.2862537764350452) internal successors, (1703), 1369 states have internal predecessors, (1703), 803 states have call successors, (803), 159 states have call predecessors, (803), 158 states have return successors, (799), 787 states have call predecessors, (799), 799 states have call successors, (799) [2023-11-12 00:51:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 3305 transitions. [2023-11-12 00:51:06,000 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 3305 transitions. Word has length 111 [2023-11-12 00:51:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:06,002 INFO L495 AbstractCegarLoop]: Abstraction has 2288 states and 3305 transitions. [2023-11-12 00:51:06,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:51:06,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 3305 transitions. [2023-11-12 00:51:06,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-12 00:51:06,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:06,009 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:06,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:51:06,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:51:06,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:06,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1214726000, now seen corresponding path program 1 times [2023-11-12 00:51:06,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:06,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221798066] [2023-11-12 00:51:06,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:06,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:51:06,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:06,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221798066] [2023-11-12 00:51:06,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221798066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:06,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:06,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:06,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717760293] [2023-11-12 00:51:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:06,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:06,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:06,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:06,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:06,480 INFO L87 Difference]: Start difference. First operand 2288 states and 3305 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:51:09,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:09,013 INFO L93 Difference]: Finished difference Result 6762 states and 9775 transitions. [2023-11-12 00:51:09,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:09,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-12 00:51:09,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:09,060 INFO L225 Difference]: With dead ends: 6762 [2023-11-12 00:51:09,060 INFO L226 Difference]: Without dead ends: 4493 [2023-11-12 00:51:09,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:09,079 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 1674 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:09,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 2942 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 00:51:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4493 states. [2023-11-12 00:51:09,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4493 to 4463. [2023-11-12 00:51:09,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4463 states, 2598 states have (on average 1.2890685142417244) internal successors, (3349), 2692 states have internal predecessors, (3349), 1551 states have call successors, (1551), 316 states have call predecessors, (1551), 311 states have return successors, (1553), 1510 states have call predecessors, (1553), 1547 states have call successors, (1553) [2023-11-12 00:51:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4463 states to 4463 states and 6453 transitions. [2023-11-12 00:51:09,557 INFO L78 Accepts]: Start accepts. Automaton has 4463 states and 6453 transitions. Word has length 115 [2023-11-12 00:51:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:09,558 INFO L495 AbstractCegarLoop]: Abstraction has 4463 states and 6453 transitions. [2023-11-12 00:51:09,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:51:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4463 states and 6453 transitions. [2023-11-12 00:51:09,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-12 00:51:09,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:09,566 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:09,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:51:09,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:51:09,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:09,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2006359447, now seen corresponding path program 1 times [2023-11-12 00:51:09,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:09,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287310377] [2023-11-12 00:51:09,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:09,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:51:09,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:09,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287310377] [2023-11-12 00:51:09,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287310377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:09,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:09,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:09,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916065165] [2023-11-12 00:51:09,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:09,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:09,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:09,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:09,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:09,919 INFO L87 Difference]: Start difference. First operand 4463 states and 6453 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:51:12,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:12,592 INFO L93 Difference]: Finished difference Result 12895 states and 18599 transitions. [2023-11-12 00:51:12,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:12,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-12 00:51:12,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:12,679 INFO L225 Difference]: With dead ends: 12895 [2023-11-12 00:51:12,679 INFO L226 Difference]: Without dead ends: 8451 [2023-11-12 00:51:12,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:12,712 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 1539 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:12,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 3125 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-12 00:51:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2023-11-12 00:51:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 8417. [2023-11-12 00:51:13,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8417 states, 4906 states have (on average 1.2880146759070525) internal successors, (6319), 5092 states have internal predecessors, (6319), 2899 states have call successors, (2899), 622 states have call predecessors, (2899), 609 states have return successors, (2909), 2810 states have call predecessors, (2909), 2895 states have call successors, (2909) [2023-11-12 00:51:13,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8417 states to 8417 states and 12127 transitions. [2023-11-12 00:51:13,495 INFO L78 Accepts]: Start accepts. Automaton has 8417 states and 12127 transitions. Word has length 115 [2023-11-12 00:51:13,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:13,495 INFO L495 AbstractCegarLoop]: Abstraction has 8417 states and 12127 transitions. [2023-11-12 00:51:13,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:51:13,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8417 states and 12127 transitions. [2023-11-12 00:51:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-12 00:51:13,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:13,500 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:51:13,500 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)] === [2023-11-12 00:51:13,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:13,501 INFO L85 PathProgramCache]: Analyzing trace with hash -366998505, now seen corresponding path program 1 times [2023-11-12 00:51:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:13,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026498473] [2023-11-12 00:51:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:13,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:51:13,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:13,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026498473] [2023-11-12 00:51:13,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026498473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:13,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:13,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564013133] [2023-11-12 00:51:13,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:13,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:13,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:13,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:13,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:13,760 INFO L87 Difference]: Start difference. First operand 8417 states and 12127 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:51:16,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:16,212 INFO L93 Difference]: Finished difference Result 16499 states and 23695 transitions. [2023-11-12 00:51:16,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:16,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 120 [2023-11-12 00:51:16,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:16,298 INFO L225 Difference]: With dead ends: 16499 [2023-11-12 00:51:16,298 INFO L226 Difference]: Without dead ends: 8101 [2023-11-12 00:51:16,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:16,347 INFO L413 NwaCegarLoop]: 1715 mSDtfsCounter, 1133 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:16,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 3155 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 00:51:16,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8101 states. [2023-11-12 00:51:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8101 to 8069. [2023-11-12 00:51:16,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8069 states, 4839 states have (on average 1.2911758627815664) internal successors, (6248), 5012 states have internal predecessors, (6248), 2607 states have call successors, (2607), 631 states have call predecessors, (2607), 620 states have return successors, (2610), 2518 states have call predecessors, (2610), 2603 states have call successors, (2610) [2023-11-12 00:51:16,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8069 states to 8069 states and 11465 transitions. [2023-11-12 00:51:16,905 INFO L78 Accepts]: Start accepts. Automaton has 8069 states and 11465 transitions. Word has length 120 [2023-11-12 00:51:16,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:16,905 INFO L495 AbstractCegarLoop]: Abstraction has 8069 states and 11465 transitions. [2023-11-12 00:51:16,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:51:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 8069 states and 11465 transitions. [2023-11-12 00:51:16,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 00:51:16,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:16,909 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2023-11-12 00:51:16,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:51:16,909 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:51:16,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:16,910 INFO L85 PathProgramCache]: Analyzing trace with hash 459638658, now seen corresponding path program 1 times [2023-11-12 00:51:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724761742] [2023-11-12 00:51:16,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:16,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-12 00:51:17,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:17,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724761742] [2023-11-12 00:51:17,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724761742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:17,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:17,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:17,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697991336] [2023-11-12 00:51:17,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:17,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:17,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:17,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:17,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:17,205 INFO L87 Difference]: Start difference. First operand 8069 states and 11465 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:51:20,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:20,294 INFO L93 Difference]: Finished difference Result 21023 states and 29834 transitions. [2023-11-12 00:51:20,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:20,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2023-11-12 00:51:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:20,406 INFO L225 Difference]: With dead ends: 21023 [2023-11-12 00:51:20,406 INFO L226 Difference]: Without dead ends: 12973 [2023-11-12 00:51:20,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:20,463 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 1530 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:20,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 2922 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 00:51:20,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12973 states. [2023-11-12 00:51:21,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12973 to 12942. [2023-11-12 00:51:21,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12942 states, 7683 states have (on average 1.2786671872966289) internal successors, (9824), 7966 states have internal predecessors, (9824), 4236 states have call successors, (4236), 1042 states have call predecessors, (4236), 1020 states have return successors, (4247), 4071 states have call predecessors, (4247), 4232 states have call successors, (4247) [2023-11-12 00:51:21,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12942 states to 12942 states and 18307 transitions. [2023-11-12 00:51:21,554 INFO L78 Accepts]: Start accepts. Automaton has 12942 states and 18307 transitions. Word has length 125 [2023-11-12 00:51:21,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:21,556 INFO L495 AbstractCegarLoop]: Abstraction has 12942 states and 18307 transitions. [2023-11-12 00:51:21,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:51:21,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12942 states and 18307 transitions. [2023-11-12 00:51:21,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 00:51:21,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:21,561 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 2, 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] [2023-11-12 00:51:21,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:51:21,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:51:21,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1874937789, now seen corresponding path program 1 times [2023-11-12 00:51:21,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:21,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277842694] [2023-11-12 00:51:21,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:21,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2023-11-12 00:51:21,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:21,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277842694] [2023-11-12 00:51:21,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277842694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:21,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:21,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150794148] [2023-11-12 00:51:21,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:21,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:21,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:21,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:21,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:21,836 INFO L87 Difference]: Start difference. First operand 12942 states and 18307 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:51:24,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:24,975 INFO L93 Difference]: Finished difference Result 37808 states and 53527 transitions. [2023-11-12 00:51:24,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:24,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 133 [2023-11-12 00:51:24,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:25,114 INFO L225 Difference]: With dead ends: 37808 [2023-11-12 00:51:25,115 INFO L226 Difference]: Without dead ends: 24885 [2023-11-12 00:51:25,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:25,162 INFO L413 NwaCegarLoop]: 1638 mSDtfsCounter, 1681 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1681 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:25,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1681 Valid, 3115 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 00:51:25,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24885 states. [2023-11-12 00:51:26,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24885 to 24827. [2023-11-12 00:51:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24827 states, 14723 states have (on average 1.2794267472661822) internal successors, (18837), 15299 states have internal predecessors, (18837), 8142 states have call successors, (8142), 2002 states have call predecessors, (8142), 1959 states have return successors, (8168), 7793 states have call predecessors, (8168), 8138 states have call successors, (8168) [2023-11-12 00:51:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24827 states to 24827 states and 35147 transitions. [2023-11-12 00:51:27,003 INFO L78 Accepts]: Start accepts. Automaton has 24827 states and 35147 transitions. Word has length 133 [2023-11-12 00:51:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:27,004 INFO L495 AbstractCegarLoop]: Abstraction has 24827 states and 35147 transitions. [2023-11-12 00:51:27,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:51:27,005 INFO L276 IsEmpty]: Start isEmpty. Operand 24827 states and 35147 transitions. [2023-11-12 00:51:27,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-12 00:51:27,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:27,009 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 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] [2023-11-12 00:51:27,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:51:27,010 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:51:27,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:27,011 INFO L85 PathProgramCache]: Analyzing trace with hash -922487559, now seen corresponding path program 1 times [2023-11-12 00:51:27,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:27,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877182100] [2023-11-12 00:51:27,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:27,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2023-11-12 00:51:27,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877182100] [2023-11-12 00:51:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877182100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:27,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:27,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:51:27,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189867749] [2023-11-12 00:51:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:27,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:27,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:27,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:27,352 INFO L87 Difference]: Start difference. First operand 24827 states and 35147 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)