./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-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/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_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/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-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/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_ad58314e-31ae-412e-9033-830464822a89/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 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:55:02,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:55:02,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:55:02,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:55:02,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:55:02,936 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:55:02,937 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:55:02,938 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:55:02,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:55:02,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:55:02,946 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:55:02,946 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:55:02,947 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:55:02,949 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:55:02,950 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:55:02,950 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:55:02,950 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:55:02,951 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:55:02,951 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:55:02,952 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:55:02,952 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:55:02,953 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:55:02,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:55:02,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:55:02,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:55:02,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:55:02,956 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:55:02,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:55:02,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:55:02,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:55:02,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:55:02,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:55:02,960 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:55:02,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:02,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:55:02,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:55:02,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:55:02,962 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:55:02,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:55:02,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:55:02,963 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:55:02,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:55:02,963 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_ad58314e-31ae-412e-9033-830464822a89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2023-11-12 00:55:03,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:55:03,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:55:03,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:55:03,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:55:03,338 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:55:03,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-12 00:55:06,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:55:07,611 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:55:07,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-12 00:55:07,676 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/data/26dbc2e45/123fd7d50f5647c0ad7b393a25b5e601/FLAG6128c76ee [2023-11-12 00:55:07,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/data/26dbc2e45/123fd7d50f5647c0ad7b393a25b5e601 [2023-11-12 00:55:07,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:55:07,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:55:07,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:07,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:55:07,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:55:07,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:07" (1/1) ... [2023-11-12 00:55:07,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cecd07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:07, skipping insertion in model container [2023-11-12 00:55:07,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:55:07" (1/1) ... [2023-11-12 00:55:07,939 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:55:11,446 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_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2023-11-12 00:55:11,452 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_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2023-11-12 00:55:11,463 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_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2023-11-12 00:55:11,464 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_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2023-11-12 00:55:11,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:11,563 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:55:11,709 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"); [5204] [2023-11-12 00:55:11,711 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)); [5211] [2023-11-12 00:55:11,713 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)); [5246-5247] [2023-11-12 00:55:11,713 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"); [5252-5254] [2023-11-12 00:55:11,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5314] [2023-11-12 00:55:11,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5317] [2023-11-12 00:55:11,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5320] [2023-11-12 00:55:11,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5323] [2023-11-12 00:55:11,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5392] [2023-11-12 00:55:11,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5438] [2023-11-12 00:55:11,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5446] [2023-11-12 00:55:11,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5453] [2023-11-12 00:55:11,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5461] [2023-11-12 00:55:11,729 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5468] [2023-11-12 00:55:11,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5476] [2023-11-12 00:55:11,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5483] [2023-11-12 00:55:11,730 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5490] [2023-11-12 00:55:11,746 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)); [5559-5560] [2023-11-12 00:55:11,755 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)); [5593-5594] [2023-11-12 00:55:12,133 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_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2023-11-12 00:55:12,134 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2023-11-12 00:55:12,135 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2023-11-12 00:55:12,136 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2023-11-12 00:55:12,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:55:12,394 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:55:12,395 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:55:12,395 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:55:12,405 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:55:12,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12 WrapperNode [2023-11-12 00:55:12,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:55:12,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:12,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:55:12,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:55:12,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:12,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:12,931 INFO L138 Inliner]: procedures = 391, calls = 1848, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 5000 [2023-11-12 00:55:12,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:55:12,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:55:12,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:55:12,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:55:12,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:12,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:55:13,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:55:13,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:55:13,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:55:13,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (1/1) ... [2023-11-12 00:55:13,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:55:13,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:55:13,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:55:13,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad58314e-31ae-412e-9033-830464822a89/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:55:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:55:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:55:13,466 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:55:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:55:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:55:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:55:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:55:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:55:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:55:13,469 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:55:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-11-12 00:55:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-11-12 00:55:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-12 00:55:13,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-12 00:55:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-12 00:55:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-12 00:55:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-12 00:55:13,471 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-12 00:55:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:55:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:55:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-12 00:55:13,472 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-12 00:55:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:55:13,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:55:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-12 00:55:13,473 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-12 00:55:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:55:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:55:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:55:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:55:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:55:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:55:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:55:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-12 00:55:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-12 00:55:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-12 00:55:13,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-12 00:55:13,478 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:55:13,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:55:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-12 00:55:13,479 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-12 00:55:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:55:13,479 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:55:13,480 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:55:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:55:13,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:55:13,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:55:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:55:13,481 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:55:13,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:55:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:55:13,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:55:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-12 00:55:13,483 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-12 00:55:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-12 00:55:13,484 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-12 00:55:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:55:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:55:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:55:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:55:13,487 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-12 00:55:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-12 00:55:13,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:55:13,488 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:55:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-12 00:55:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-12 00:55:13,489 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:55:13,489 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:55:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-12 00:55:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-12 00:55:13,490 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-12 00:55:13,490 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-12 00:55:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:55:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:55:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:55:13,491 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-12 00:55:13,491 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-12 00:55:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-12 00:55:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-12 00:55:13,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:55:13,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:55:13,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:55:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:55:13,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:55:13,494 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:55:13,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:55:13,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:55:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:55:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:55:13,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:55:13,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:55:13,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:55:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:55:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:55:13,498 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-12 00:55:13,498 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-12 00:55:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:55:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:55:13,499 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:55:13,499 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:55:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:55:13,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:55:13,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:55:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:55:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-12 00:55:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-12 00:55:13,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:55:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:55:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:55:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:55:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:55:13,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:55:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:55:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:55:13,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:55:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:55:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:55:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:55:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:55:13,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:55:13,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:55:13,509 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:55:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:55:13,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:55:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:55:13,514 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-12 00:55:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-12 00:55:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:55:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:55:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 00:55:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 00:55:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:55:13,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:55:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-12 00:55:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-12 00:55:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2023-11-12 00:55:13,525 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2023-11-12 00:55:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-12 00:55:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-12 00:55:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-12 00:55:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-12 00:55:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:55:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:55:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-12 00:55:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-12 00:55:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-12 00:55:13,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-12 00:55:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:55:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-12 00:55:13,528 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-12 00:55:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:55:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:55:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-12 00:55:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-12 00:55:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2023-11-12 00:55:13,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2023-11-12 00:55:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-12 00:55:13,530 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-12 00:55:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-12 00:55:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-12 00:55:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:55:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:55:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-12 00:55:13,531 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-12 00:55:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-12 00:55:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-12 00:55:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-12 00:55:13,532 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-12 00:55:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-12 00:55:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-12 00:55:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-12 00:55:13,533 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-12 00:55:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:55:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-12 00:55:13,534 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-12 00:55:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:55:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:55:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-12 00:55:13,535 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-12 00:55:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-12 00:55:13,536 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-12 00:55:14,486 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:55:14,491 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:55:14,910 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:55:19,258 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:55:19,265 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 00:55:19,658 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-4: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2023-11-12 00:55:19,659 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-4: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2023-11-12 00:55:19,659 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet751#1 := ~tmp___4~7#1; [2023-11-12 00:55:19,659 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet751#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet751#1 % 18446744073709551616 <= 2096896; [2023-11-12 00:55:19,659 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-2: assume 0 == #t~nondet751#1 % 18446744073709551616;havoc #t~nondet751#1; [2023-11-12 00:55:19,660 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-2: assume !(0 == #t~nondet751#1 % 18446744073709551616);havoc #t~nondet751#1; [2023-11-12 00:55:19,660 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret752#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-12 00:55:19,660 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: assume -9223372036854775808 <= #t~ret752#1 && #t~ret752#1 <= 9223372036854775807;havoc #t~ret752#1; [2023-11-12 00:55:19,660 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-12 00:55:19,661 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet751#1 := 0; [2023-11-12 00:55:19,826 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:55:22,290 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:55:22,290 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:55:22,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:22 BoogieIcfgContainer [2023-11-12 00:55:22,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:55:22,303 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:55:22,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:55:22,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:55:22,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:55:07" (1/3) ... [2023-11-12 00:55:22,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebbc45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:22, skipping insertion in model container [2023-11-12 00:55:22,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:55:12" (2/3) ... [2023-11-12 00:55:22,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebbc45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:55:22, skipping insertion in model container [2023-11-12 00:55:22,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:55:22" (3/3) ... [2023-11-12 00:55:22,313 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-12 00:55:22,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:55:22,340 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:55:22,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:55:22,458 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;@c267bbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:55:22,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:55:22,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 1548 states, 855 states have (on average 1.302923976608187) internal successors, (1114), 897 states have internal predecessors, (1114), 611 states have call successors, (611), 81 states have call predecessors, (611), 80 states have return successors, (606), 593 states have call predecessors, (606), 606 states have call successors, (606) [2023-11-12 00:55:22,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 00:55:22,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:22,499 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 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 00:55:22,499 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 00:55:22,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:22,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1919821460, now seen corresponding path program 1 times [2023-11-12 00:55:22,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:22,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362449221] [2023-11-12 00:55:22,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-12 00:55:23,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:23,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362449221] [2023-11-12 00:55:23,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362449221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:23,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:23,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:23,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600811592] [2023-11-12 00:55:23,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:23,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:23,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:23,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:23,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:23,502 INFO L87 Difference]: Start difference. First operand has 1548 states, 855 states have (on average 1.302923976608187) internal successors, (1114), 897 states have internal predecessors, (1114), 611 states have call successors, (611), 81 states have call predecessors, (611), 80 states have return successors, (606), 593 states have call predecessors, (606), 606 states have call successors, (606) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:25,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:25,938 INFO L93 Difference]: Finished difference Result 4559 states and 6964 transitions. [2023-11-12 00:55:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:25,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2023-11-12 00:55:25,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:25,988 INFO L225 Difference]: With dead ends: 4559 [2023-11-12 00:55:25,988 INFO L226 Difference]: Without dead ends: 3010 [2023-11-12 00:55:26,009 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 00:55:26,015 INFO L413 NwaCegarLoop]: 2069 mSDtfsCounter, 2250 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:26,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 4096 Invalid, 536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 00:55:26,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2023-11-12 00:55:26,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3006. [2023-11-12 00:55:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 1665 states have (on average 1.297897897897898) internal successors, (2161), 1745 states have internal predecessors, (2161), 1181 states have call successors, (1181), 158 states have call predecessors, (1181), 157 states have return successors, (1178), 1152 states have call predecessors, (1178), 1178 states have call successors, (1178) [2023-11-12 00:55:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 4520 transitions. [2023-11-12 00:55:26,539 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 4520 transitions. Word has length 57 [2023-11-12 00:55:26,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:26,541 INFO L495 AbstractCegarLoop]: Abstraction has 3006 states and 4520 transitions. [2023-11-12 00:55:26,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 4520 transitions. [2023-11-12 00:55:26,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-12 00:55:26,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:26,558 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 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 00:55:26,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:55:26,559 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 00:55:26,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:26,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1715000287, now seen corresponding path program 1 times [2023-11-12 00:55:26,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:26,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880655958] [2023-11-12 00:55:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:26,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-12 00:55:26,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:26,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880655958] [2023-11-12 00:55:26,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880655958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:26,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:26,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:26,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888991799] [2023-11-12 00:55:26,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:26,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:26,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:26,899 INFO L87 Difference]: Start difference. First operand 3006 states and 4520 transitions. 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:28,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:28,957 INFO L93 Difference]: Finished difference Result 8652 states and 13038 transitions. [2023-11-12 00:55:28,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:28,958 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2023-11-12 00:55:28,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:29,031 INFO L225 Difference]: With dead ends: 8652 [2023-11-12 00:55:29,031 INFO L226 Difference]: Without dead ends: 5655 [2023-11-12 00:55:29,154 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 00:55:29,159 INFO L413 NwaCegarLoop]: 2469 mSDtfsCounter, 2063 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:29,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 4467 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:55:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2023-11-12 00:55:29,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5626. [2023-11-12 00:55:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5626 states, 3102 states have (on average 1.296260477111541) internal successors, (4021), 3254 states have internal predecessors, (4021), 2228 states have call successors, (2228), 298 states have call predecessors, (2228), 293 states have return successors, (2239), 2161 states have call predecessors, (2239), 2225 states have call successors, (2239) [2023-11-12 00:55:29,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5626 states to 5626 states and 8488 transitions. [2023-11-12 00:55:29,864 INFO L78 Accepts]: Start accepts. Automaton has 5626 states and 8488 transitions. Word has length 60 [2023-11-12 00:55:29,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:29,865 INFO L495 AbstractCegarLoop]: Abstraction has 5626 states and 8488 transitions. [2023-11-12 00:55:29,865 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, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:29,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5626 states and 8488 transitions. [2023-11-12 00:55:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 00:55:29,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:29,871 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:29,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:55:29,871 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 00:55:29,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:29,883 INFO L85 PathProgramCache]: Analyzing trace with hash 433228436, now seen corresponding path program 1 times [2023-11-12 00:55:29,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:29,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548421579] [2023-11-12 00:55:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:29,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:30,136 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-12 00:55:30,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:30,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548421579] [2023-11-12 00:55:30,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548421579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:30,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:30,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:30,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957837572] [2023-11-12 00:55:30,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:30,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:30,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:30,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:30,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:30,143 INFO L87 Difference]: Start difference. First operand 5626 states and 8488 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:32,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:32,802 INFO L93 Difference]: Finished difference Result 16328 states and 24604 transitions. [2023-11-12 00:55:32,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:32,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2023-11-12 00:55:32,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:32,939 INFO L225 Difference]: With dead ends: 16328 [2023-11-12 00:55:32,939 INFO L226 Difference]: Without dead ends: 10711 [2023-11-12 00:55:32,998 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 00:55:33,000 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 2089 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:33,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 4036 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 00:55:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10711 states. [2023-11-12 00:55:34,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10711 to 10680. [2023-11-12 00:55:34,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10680 states, 5886 states have (on average 1.2910295616717635) internal successors, (7599), 6174 states have internal predecessors, (7599), 4222 states have call successors, (4222), 580 states have call predecessors, (4222), 569 states have return successors, (4249), 4089 states have call predecessors, (4249), 4219 states have call successors, (4249) [2023-11-12 00:55:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10680 states to 10680 states and 16070 transitions. [2023-11-12 00:55:34,286 INFO L78 Accepts]: Start accepts. Automaton has 10680 states and 16070 transitions. Word has length 64 [2023-11-12 00:55:34,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:34,287 INFO L495 AbstractCegarLoop]: Abstraction has 10680 states and 16070 transitions. [2023-11-12 00:55:34,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 10680 states and 16070 transitions. [2023-11-12 00:55:34,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 00:55:34,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:34,291 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:55:34,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:55:34,292 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 00:55:34,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -2050510991, now seen corresponding path program 1 times [2023-11-12 00:55:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588493788] [2023-11-12 00:55:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:34,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:34,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-12 00:55:34,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:34,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588493788] [2023-11-12 00:55:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588493788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:55:34,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092777525] [2023-11-12 00:55:34,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:34,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:55:34,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:34,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:55:34,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:55:34,959 INFO L87 Difference]: Start difference. First operand 10680 states and 16070 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:42,760 INFO L93 Difference]: Finished difference Result 21274 states and 31765 transitions. [2023-11-12 00:55:42,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:55:42,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2023-11-12 00:55:42,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:42,870 INFO L225 Difference]: With dead ends: 21274 [2023-11-12 00:55:42,871 INFO L226 Difference]: Without dead ends: 10603 [2023-11-12 00:55:42,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:55:42,929 INFO L413 NwaCegarLoop]: 3265 mSDtfsCounter, 6420 mSDsluCounter, 2862 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 2935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6506 SdHoareTripleChecker+Valid, 6127 SdHoareTripleChecker+Invalid, 5470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2935 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:42,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6506 Valid, 6127 Invalid, 5470 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2935 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-12 00:55:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10603 states. [2023-11-12 00:55:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10603 to 10539. [2023-11-12 00:55:43,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10539 states, 5940 states have (on average 1.2836700336700337) internal successors, (7625), 6224 states have internal predecessors, (7625), 3954 states have call successors, (3954), 653 states have call predecessors, (3954), 642 states have return successors, (3966), 3820 states have call predecessors, (3966), 3951 states have call successors, (3966) [2023-11-12 00:55:43,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10539 states to 10539 states and 15545 transitions. [2023-11-12 00:55:43,992 INFO L78 Accepts]: Start accepts. Automaton has 10539 states and 15545 transitions. Word has length 67 [2023-11-12 00:55:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:55:43,997 INFO L495 AbstractCegarLoop]: Abstraction has 10539 states and 15545 transitions. [2023-11-12 00:55:43,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-12 00:55:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 10539 states and 15545 transitions. [2023-11-12 00:55:43,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-12 00:55:44,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:55:44,000 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2023-11-12 00:55:44,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:55:44,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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 00:55:44,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:55:44,002 INFO L85 PathProgramCache]: Analyzing trace with hash 152518306, now seen corresponding path program 1 times [2023-11-12 00:55:44,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:55:44,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176993737] [2023-11-12 00:55:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:55:44,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:55:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:55:44,227 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-12 00:55:44,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:55:44,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176993737] [2023-11-12 00:55:44,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176993737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:55:44,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:55:44,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:55:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958111091] [2023-11-12 00:55:44,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:55:44,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:55:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:55:44,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:55:44,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:55:44,233 INFO L87 Difference]: Start difference. First operand 10539 states and 15545 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:55:46,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:55:46,208 INFO L93 Difference]: Finished difference Result 21034 states and 31038 transitions. [2023-11-12 00:55:46,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:55:46,209 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), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2023-11-12 00:55:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:55:46,293 INFO L225 Difference]: With dead ends: 21034 [2023-11-12 00:55:46,293 INFO L226 Difference]: Without dead ends: 10539 [2023-11-12 00:55:46,345 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 00:55:46,346 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 7 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:55:46,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4066 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-12 00:55:46,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10539 states.