./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:56:49,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:56:49,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:56:49,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:56:49,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:56:49,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:56:49,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:56:49,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:56:49,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:56:49,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:56:49,802 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:56:49,803 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:56:49,803 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:56:49,805 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:56:49,806 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:56:49,806 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:56:49,807 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:56:49,807 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:56:49,807 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:56:49,808 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:56:49,808 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:56:49,809 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:56:49,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:56:49,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:56:49,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:56:49,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:56:49,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:56:49,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:56:49,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:56:49,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:56:49,815 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:56:49,816 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:56:49,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:56:49,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:49,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:56:49,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:56:49,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:56:49,817 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:56:49,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:56:49,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:56:49,818 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:56:49,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:56:49,819 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2023-11-12 00:56:50,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:56:50,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:56:50,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:56:50,227 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:56:50,228 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:56:50,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2023-11-12 00:56:53,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:56:54,256 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:56:54,256 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2023-11-12 00:56:54,317 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/data/aae93b2b1/a3dfd0ca904141f998b4b1fabc08be91/FLAG364841e9c [2023-11-12 00:56:54,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/data/aae93b2b1/a3dfd0ca904141f998b4b1fabc08be91 [2023-11-12 00:56:54,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:56:54,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:56:54,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:54,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:56:54,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:56:54,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:54" (1/1) ... [2023-11-12 00:56:54,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d122380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:54, skipping insertion in model container [2023-11-12 00:56:54,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:56:54" (1/1) ... [2023-11-12 00:56:54,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:56:57,650 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2023-11-12 00:56:57,656 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2023-11-12 00:56:57,657 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2023-11-12 00:56:57,658 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2023-11-12 00:56:57,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:57,755 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:56:57,897 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"); [5259] [2023-11-12 00:56:57,899 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)); [5266] [2023-11-12 00:56:57,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5273] [2023-11-12 00:56:57,902 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)); [5316-5317] [2023-11-12 00:56:57,903 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"); [5322-5324] [2023-11-12 00:56:57,904 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; incl %0": "+m" (v->counter)); [5344] [2023-11-12 00:56:57,904 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; decl %0": "+m" (v->counter)); [5351] [2023-11-12 00:56:57,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5513] [2023-11-12 00:56:57,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5520] [2023-11-12 00:56:57,916 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)); [5614-5615] [2023-11-12 00:56:57,919 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)); [5648-5649] [2023-11-12 00:56:57,920 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" (79), "i" (12UL)); [5690-5691] [2023-11-12 00:56:57,922 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" (91), "i" (12UL)); [5719-5720] [2023-11-12 00:56:57,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6297] [2023-11-12 00:56:57,983 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 *)"drivers/net/ethernet/natsemi/ns83820.c"), "i" (538), "i" (12UL)); [6331-6332] [2023-11-12 00:56:58,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6765] [2023-11-12 00:56:58,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6925] [2023-11-12 00:56:58,043 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)dev->rx_info.next_rx_desc) [7447] [2023-11-12 00:56:58,166 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2023-11-12 00:56:58,167 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2023-11-12 00:56:58,168 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2023-11-12 00:56:58,168 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_7bd8c2ae-12f5-4021-baef-3617e4b3434b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2023-11-12 00:56:58,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:56:58,444 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:56:58,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58 WrapperNode [2023-11-12 00:56:58,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:56:58,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:58,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:56:58,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:56:58,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:58,574 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:58,807 INFO L138 Inliner]: procedures = 459, calls = 1838, calls flagged for inlining = 218, calls inlined = 200, statements flattened = 5022 [2023-11-12 00:56:58,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:56:58,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:56:58,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:56:58,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:56:58,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:58,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:58,883 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:58,883 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:59,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:59,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:59,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:59,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:59,155 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:56:59,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:56:59,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:56:59,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:56:59,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (1/1) ... [2023-11-12 00:56:59,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:56:59,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:56:59,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:56:59,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd8c2ae-12f5-4021-baef-3617e4b3434b/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:56:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2023-11-12 00:56:59,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2023-11-12 00:56:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:56:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:56:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2023-11-12 00:56:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2023-11-12 00:56:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:56:59,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:56:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2023-11-12 00:56:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2023-11-12 00:56:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2023-11-12 00:56:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2023-11-12 00:56:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:56:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:56:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:56:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:56:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:56:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:56:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:56:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:56:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2023-11-12 00:56:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2023-11-12 00:56:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2023-11-12 00:56:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2023-11-12 00:56:59,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2023-11-12 00:56:59,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2023-11-12 00:56:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2023-11-12 00:56:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2023-11-12 00:56:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:56:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:56:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2023-11-12 00:56:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2023-11-12 00:56:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:56:59,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:56:59,249 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:56:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:56:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-12 00:56:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-12 00:56:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:56:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:56:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:56:59,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:56:59,250 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:56:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:56:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:56:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:56:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:56:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-12 00:56:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-12 00:56:59,251 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:56:59,251 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:56:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:56:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:56:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2023-11-12 00:56:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2023-11-12 00:56:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:56:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:56:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:56:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:56:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:56:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:56:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:56:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:56:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:56:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:56:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:56:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:56:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:56:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:56:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:56:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:56:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:56:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-12 00:56:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-12 00:56:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:56:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:56:59,254 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:56:59,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:56:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:56:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:56:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2023-11-12 00:56:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2023-11-12 00:56:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:56:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:56:59,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:56:59,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:56:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:56:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-12 00:56:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-12 00:56:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:56:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:56:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:56:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:56:59,256 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2023-11-12 00:56:59,256 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2023-11-12 00:56:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2023-11-12 00:56:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2023-11-12 00:56:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:56:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:56:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-12 00:56:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-12 00:56:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:56:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:56:59,257 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-12 00:56:59,257 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-12 00:56:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:56:59,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:56:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-12 00:56:59,258 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-12 00:56:59,258 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2023-11-12 00:56:59,259 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2023-11-12 00:56:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2023-11-12 00:56:59,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2023-11-12 00:56:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:56:59,259 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:56:59,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:56:59,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:56:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-12 00:56:59,260 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-12 00:56:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-12 00:56:59,260 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-12 00:56:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:56:59,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:56:59,260 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2023-11-12 00:56:59,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2023-11-12 00:56:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2023-11-12 00:56:59,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2023-11-12 00:56:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2023-11-12 00:56:59,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2023-11-12 00:56:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:56:59,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:56:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-12 00:56:59,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-12 00:56:59,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:56:59,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:56:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-12 00:56:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-12 00:56:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-12 00:56:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-12 00:56:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:56:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:56:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:56:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:56:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2023-11-12 00:56:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2023-11-12 00:56:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-12 00:56:59,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-12 00:56:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:56:59,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:56:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:56:59,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:56:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:56:59,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:56:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-12 00:56:59,263 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-12 00:56:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2023-11-12 00:56:59,264 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2023-11-12 00:56:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-12 00:56:59,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-12 00:56:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:56:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2023-11-12 00:56:59,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2023-11-12 00:56:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:56:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:56:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:56:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:56:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:56:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:56:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-12 00:56:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-12 00:56:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 00:56:59,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 00:56:59,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:56:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:56:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 00:56:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 00:56:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-12 00:56:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-12 00:56:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:56:59,266 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:56:59,266 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:56:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:56:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2023-11-12 00:56:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2023-11-12 00:56:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2023-11-12 00:56:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2023-11-12 00:56:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2023-11-12 00:56:59,267 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2023-11-12 00:56:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:56:59,267 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-12 00:56:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-12 00:56:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:56:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:56:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:56:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:56:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2023-11-12 00:56:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2023-11-12 00:56:59,268 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-12 00:56:59,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-12 00:56:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2023-11-12 00:56:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2023-11-12 00:56:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:56:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:56:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-12 00:56:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-12 00:56:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2023-11-12 00:56:59,269 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2023-11-12 00:56:59,269 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2023-11-12 00:56:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2023-11-12 00:56:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2023-11-12 00:56:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2023-11-12 00:56:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:56:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:56:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-12 00:56:59,270 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-12 00:56:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:56:59,270 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2023-11-12 00:56:59,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2023-11-12 00:56:59,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:56:59,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:56:59,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2023-11-12 00:56:59,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2023-11-12 00:56:59,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2023-11-12 00:56:59,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2023-11-12 00:57:00,057 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:57:00,062 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:57:00,313 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:57:03,709 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:57:03,948 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:57:07,759 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:57:07,759 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:57:07,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:07 BoogieIcfgContainer [2023-11-12 00:57:07,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:57:07,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:57:07,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:57:07,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:57:07,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:56:54" (1/3) ... [2023-11-12 00:57:07,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d47b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:07, skipping insertion in model container [2023-11-12 00:57:07,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:56:58" (2/3) ... [2023-11-12 00:57:07,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d47b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:57:07, skipping insertion in model container [2023-11-12 00:57:07,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:57:07" (3/3) ... [2023-11-12 00:57:07,780 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2023-11-12 00:57:07,807 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:57:07,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:57:07,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:57:07,930 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;@613b379f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:57:07,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:57:07,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 1440 states, 798 states have (on average 1.2305764411027569) internal successors, (982), 830 states have internal predecessors, (982), 534 states have call successors, (534), 106 states have call predecessors, (534), 105 states have return successors, (529), 525 states have call predecessors, (529), 529 states have call successors, (529) [2023-11-12 00:57:07,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-12 00:57:07,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:07,971 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:07,972 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 00:57:07,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:07,981 INFO L85 PathProgramCache]: Analyzing trace with hash 2033371739, now seen corresponding path program 1 times [2023-11-12 00:57:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:07,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460938923] [2023-11-12 00:57:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:07,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:57:08,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:08,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460938923] [2023-11-12 00:57:08,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460938923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:08,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:08,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:08,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298823803] [2023-11-12 00:57:08,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:08,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:08,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:08,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:08,815 INFO L87 Difference]: Start difference. First operand has 1440 states, 798 states have (on average 1.2305764411027569) internal successors, (982), 830 states have internal predecessors, (982), 534 states have call successors, (534), 106 states have call predecessors, (534), 105 states have return successors, (529), 525 states have call predecessors, (529), 529 states have call successors, (529) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 00:57:14,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:57:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:14,097 INFO L93 Difference]: Finished difference Result 4227 states and 6160 transitions. [2023-11-12 00:57:14,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 87 [2023-11-12 00:57:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:14,143 INFO L225 Difference]: With dead ends: 4227 [2023-11-12 00:57:14,144 INFO L226 Difference]: Without dead ends: 2792 [2023-11-12 00:57:14,159 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 00:57:14,162 INFO L413 NwaCegarLoop]: 1768 mSDtfsCounter, 1957 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1957 SdHoareTripleChecker+Valid, 3493 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:14,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1957 Valid, 3493 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 575 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-12 00:57:14,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2792 states. [2023-11-12 00:57:14,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2792 to 2788. [2023-11-12 00:57:14,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 1555 states have (on average 1.2244372990353698) internal successors, (1904), 1617 states have internal predecessors, (1904), 1023 states have call successors, (1023), 208 states have call predecessors, (1023), 207 states have return successors, (1020), 1012 states have call predecessors, (1020), 1020 states have call successors, (1020) [2023-11-12 00:57:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3947 transitions. [2023-11-12 00:57:14,517 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3947 transitions. Word has length 87 [2023-11-12 00:57:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:14,518 INFO L495 AbstractCegarLoop]: Abstraction has 2788 states and 3947 transitions. [2023-11-12 00:57:14,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 00:57:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3947 transitions. [2023-11-12 00:57:14,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-12 00:57:14,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:14,527 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:14,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:57:14,528 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 00:57:14,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1269152500, now seen corresponding path program 1 times [2023-11-12 00:57:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:14,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975121622] [2023-11-12 00:57:14,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:14,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:14,806 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:57:14,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:14,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975121622] [2023-11-12 00:57:14,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975121622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:14,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:14,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:14,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913381904] [2023-11-12 00:57:14,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:14,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:14,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:14,815 INFO L87 Difference]: Start difference. First operand 2788 states and 3947 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 00:57:18,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:18,637 INFO L93 Difference]: Finished difference Result 7906 states and 11143 transitions. [2023-11-12 00:57:18,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:18,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2023-11-12 00:57:18,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:18,690 INFO L225 Difference]: With dead ends: 7906 [2023-11-12 00:57:18,690 INFO L226 Difference]: Without dead ends: 5133 [2023-11-12 00:57:18,708 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 00:57:18,709 INFO L413 NwaCegarLoop]: 1746 mSDtfsCounter, 1680 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 3433 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:18,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 3433 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-12 00:57:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5133 states. [2023-11-12 00:57:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5133 to 5102. [2023-11-12 00:57:19,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 2841 states have (on average 1.2143611404435057) internal successors, (3450), 2957 states have internal predecessors, (3450), 1857 states have call successors, (1857), 402 states have call predecessors, (1857), 401 states have return successors, (1860), 1836 states have call predecessors, (1860), 1854 states have call successors, (1860) [2023-11-12 00:57:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 7167 transitions. [2023-11-12 00:57:19,214 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 7167 transitions. Word has length 98 [2023-11-12 00:57:19,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:19,217 INFO L495 AbstractCegarLoop]: Abstraction has 5102 states and 7167 transitions. [2023-11-12 00:57:19,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 00:57:19,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 7167 transitions. [2023-11-12 00:57:19,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-12 00:57:19,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:19,226 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:19,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:57:19,227 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 00:57:19,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash 677762762, now seen corresponding path program 1 times [2023-11-12 00:57:19,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:19,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501231259] [2023-11-12 00:57:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:19,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:19,587 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-12 00:57:19,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:19,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501231259] [2023-11-12 00:57:19,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501231259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:19,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:19,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:19,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498687561] [2023-11-12 00:57:19,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:19,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:19,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:19,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:19,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:19,598 INFO L87 Difference]: Start difference. First operand 5102 states and 7167 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 00:57:22,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:22,902 INFO L93 Difference]: Finished difference Result 10029 states and 14039 transitions. [2023-11-12 00:57:22,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:22,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2023-11-12 00:57:22,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:22,944 INFO L225 Difference]: With dead ends: 10029 [2023-11-12 00:57:22,944 INFO L226 Difference]: Without dead ends: 4942 [2023-11-12 00:57:22,969 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 00:57:22,971 INFO L413 NwaCegarLoop]: 2200 mSDtfsCounter, 1437 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 3900 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:22,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 3900 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-12 00:57:22,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4942 states. [2023-11-12 00:57:23,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4942 to 4914. [2023-11-12 00:57:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4914 states, 2744 states have (on average 1.2059037900874636) internal successors, (3309), 2865 states have internal predecessors, (3309), 1751 states have call successors, (1751), 417 states have call predecessors, (1751), 416 states have return successors, (1751), 1730 states have call predecessors, (1751), 1748 states have call successors, (1751) [2023-11-12 00:57:23,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4914 states to 4914 states and 6811 transitions. [2023-11-12 00:57:23,395 INFO L78 Accepts]: Start accepts. Automaton has 4914 states and 6811 transitions. Word has length 99 [2023-11-12 00:57:23,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:23,396 INFO L495 AbstractCegarLoop]: Abstraction has 4914 states and 6811 transitions. [2023-11-12 00:57:23,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-12 00:57:23,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4914 states and 6811 transitions. [2023-11-12 00:57:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-12 00:57:23,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:23,399 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 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] [2023-11-12 00:57:23,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:57:23,399 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 00:57:23,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:23,400 INFO L85 PathProgramCache]: Analyzing trace with hash -315794507, now seen corresponding path program 1 times [2023-11-12 00:57:23,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:23,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339522643] [2023-11-12 00:57:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:23,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-12 00:57:23,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339522643] [2023-11-12 00:57:23,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339522643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:23,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:23,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:23,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594996882] [2023-11-12 00:57:23,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:23,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:23,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:23,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:23,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:23,629 INFO L87 Difference]: Start difference. First operand 4914 states and 6811 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:57:27,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:27,398 INFO L93 Difference]: Finished difference Result 13491 states and 18706 transitions. [2023-11-12 00:57:27,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:27,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2023-11-12 00:57:27,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:27,484 INFO L225 Difference]: With dead ends: 13491 [2023-11-12 00:57:27,484 INFO L226 Difference]: Without dead ends: 8592 [2023-11-12 00:57:27,512 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 00:57:27,516 INFO L413 NwaCegarLoop]: 1756 mSDtfsCounter, 1900 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1900 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:27,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1900 Valid, 3402 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-12 00:57:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8592 states. [2023-11-12 00:57:28,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8592 to 8559. [2023-11-12 00:57:28,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8559 states, 4785 states have (on average 1.2083594566353186) internal successors, (5782), 5005 states have internal predecessors, (5782), 3031 states have call successors, (3031), 744 states have call predecessors, (3031), 740 states have return successors, (3056), 2978 states have call predecessors, (3056), 3028 states have call successors, (3056) [2023-11-12 00:57:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8559 states to 8559 states and 11869 transitions. [2023-11-12 00:57:28,251 INFO L78 Accepts]: Start accepts. Automaton has 8559 states and 11869 transitions. Word has length 102 [2023-11-12 00:57:28,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:28,253 INFO L495 AbstractCegarLoop]: Abstraction has 8559 states and 11869 transitions. [2023-11-12 00:57:28,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-12 00:57:28,255 INFO L276 IsEmpty]: Start isEmpty. Operand 8559 states and 11869 transitions. [2023-11-12 00:57:28,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-12 00:57:28,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:28,257 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 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] [2023-11-12 00:57:28,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:57:28,258 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 00:57:28,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash 954689765, now seen corresponding path program 1 times [2023-11-12 00:57:28,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:28,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124632297] [2023-11-12 00:57:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:28,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-12 00:57:28,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:28,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124632297] [2023-11-12 00:57:28,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124632297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:28,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:28,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:57:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104173035] [2023-11-12 00:57:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:28,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:57:28,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:28,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:57:28,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:57:28,584 INFO L87 Difference]: Start difference. First operand 8559 states and 11869 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 00:57:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:57:32,718 INFO L93 Difference]: Finished difference Result 23315 states and 32276 transitions. [2023-11-12 00:57:32,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:57:32,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 103 [2023-11-12 00:57:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:57:32,834 INFO L225 Difference]: With dead ends: 23315 [2023-11-12 00:57:32,834 INFO L226 Difference]: Without dead ends: 14771 [2023-11-12 00:57:32,879 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 00:57:32,880 INFO L413 NwaCegarLoop]: 2190 mSDtfsCounter, 1855 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:57:32,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 3897 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-12 00:57:32,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14771 states. [2023-11-12 00:57:34,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14771 to 14736. [2023-11-12 00:57:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14736 states, 8276 states have (on average 1.207709038182697) internal successors, (9995), 8632 states have internal predecessors, (9995), 5153 states have call successors, (5153), 1315 states have call predecessors, (5153), 1304 states have return successors, (5209), 5035 states have call predecessors, (5209), 5150 states have call successors, (5209) [2023-11-12 00:57:34,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14736 states to 14736 states and 20357 transitions. [2023-11-12 00:57:34,153 INFO L78 Accepts]: Start accepts. Automaton has 14736 states and 20357 transitions. Word has length 103 [2023-11-12 00:57:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:57:34,156 INFO L495 AbstractCegarLoop]: Abstraction has 14736 states and 20357 transitions. [2023-11-12 00:57:34,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 00:57:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 14736 states and 20357 transitions. [2023-11-12 00:57:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-12 00:57:34,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:57:34,160 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 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] [2023-11-12 00:57:34,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:57:34,161 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 00:57:34,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:57:34,162 INFO L85 PathProgramCache]: Analyzing trace with hash 875364916, now seen corresponding path program 1 times [2023-11-12 00:57:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:57:34,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269445193] [2023-11-12 00:57:34,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:57:34,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:57:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:57:34,656 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2023-11-12 00:57:34,657 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:57:34,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269445193] [2023-11-12 00:57:34,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269445193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:57:34,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:57:34,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:57:34,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582718737] [2023-11-12 00:57:34,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:57:34,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:57:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:57:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:57:34,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:57:34,664 INFO L87 Difference]: Start difference. First operand 14736 states and 20357 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)