./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-smsc-smc91c92_cs.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91 --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 5e82a719a5cd0ec3a30cd42dbacb612fd330a6d3aa584d331bc796b2ce8b6a55 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:09:15,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:09:15,345 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:09:15,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:09:15,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:09:15,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:09:15,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:09:15,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:09:15,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:09:15,405 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:09:15,406 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:09:15,407 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:09:15,407 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:09:15,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:09:15,409 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:09:15,410 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:09:15,410 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:09:15,410 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:09:15,411 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:09:15,411 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:09:15,412 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:09:15,412 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:09:15,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:09:15,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:09:15,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:09:15,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:09:15,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:09:15,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:09:15,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:09:15,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:09:15,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:09:15,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:09:15,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:09:15,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:09:15,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:09:15,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:09:15,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:09:15,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:09:15,420 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:09:15,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:09:15,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:09:15,420 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:09:15,421 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:09:15,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:09:15,421 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_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e82a719a5cd0ec3a30cd42dbacb612fd330a6d3aa584d331bc796b2ce8b6a55 [2023-11-25 00:09:15,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:09:15,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:09:15,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:09:15,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:09:15,727 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:09:15,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2023-11-25 00:09:18,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:09:19,641 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:09:19,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2023-11-25 00:09:19,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/data/8fdc80099/3a5c99988dab47348f14f7a8d325f252/FLAG7d294d9d7 [2023-11-25 00:09:19,714 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/data/8fdc80099/3a5c99988dab47348f14f7a8d325f252 [2023-11-25 00:09:19,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:09:19,718 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:09:19,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:09:19,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:09:19,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:09:19,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:09:19" (1/1) ... [2023-11-25 00:09:19,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52260043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:19, skipping insertion in model container [2023-11-25 00:09:19,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:09:19" (1/1) ... [2023-11-25 00:09:19,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:09:23,136 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350019,350032] [2023-11-25 00:09:23,141 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350188,350201] [2023-11-25 00:09:23,150 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350355,350368] [2023-11-25 00:09:23,151 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350523,350536] [2023-11-25 00:09:23,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:09:23,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:09:23,413 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"); [5767] [2023-11-25 00:09:23,415 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)); [5774] [2023-11-25 00:09:23,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5781] [2023-11-25 00:09:23,417 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)); [5822-5823] [2023-11-25 00:09:23,417 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"); [5828-5830] [2023-11-25 00:09:23,418 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" (809), "i" (12UL)); [5855-5856] [2023-11-25 00:09:23,419 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5861-5863] [2023-11-25 00:09:23,420 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" (814), "i" (12UL)); [5887-5888] [2023-11-25 00:09:23,420 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5893-5895] [2023-11-25 00:09:23,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [6005] [2023-11-25 00:09:23,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [6012] [2023-11-25 00:09:23,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6031] [2023-11-25 00:09:23,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6039] [2023-11-25 00:09:23,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [6046] [2023-11-25 00:09:23,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [6054] [2023-11-25 00:09:23,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [6061] [2023-11-25 00:09:23,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [6068] [2023-11-25 00:09:23,674 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350019,350032] [2023-11-25 00:09:23,675 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350188,350201] [2023-11-25 00:09:23,675 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350355,350368] [2023-11-25 00:09:23,676 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_68929e91-0ff0-41a0-b05c-127de5460f6b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350523,350536] [2023-11-25 00:09:23,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:09:23,949 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:09:23,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23 WrapperNode [2023-11-25 00:09:23,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:09:23,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:09:23,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:09:23,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:09:23,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,441 INFO L138 Inliner]: procedures = 407, calls = 2657, calls flagged for inlining = 199, calls inlined = 173, statements flattened = 5732 [2023-11-25 00:09:24,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:09:24,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:09:24,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:09:24,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:09:24,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,552 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,552 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:09:24,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:09:24,933 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:09:24,933 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:09:24,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (1/1) ... [2023-11-25 00:09:24,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:09:24,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:09:24,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:09:25,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68929e91-0ff0-41a0-b05c-127de5460f6b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:09:25,031 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-25 00:09:25,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-25 00:09:25,034 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_detach [2023-11-25 00:09:25,034 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_detach [2023-11-25 00:09:25,034 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-25 00:09:25,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-25 00:09:25,035 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:09:25,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:09:25,036 INFO L130 BoogieDeclarations]: Found specification of procedure mhz_3288_power [2023-11-25 00:09:25,036 INFO L138 BoogieDeclarations]: Found implementation of procedure mhz_3288_power [2023-11-25 00:09:25,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:09:25,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:09:25,037 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_io [2023-11-25 00:09:25,037 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_io [2023-11-25 00:09:25,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_70 [2023-11-25 00:09:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_70 [2023-11-25 00:09:25,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:09:25,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:09:25,038 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-25 00:09:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-25 00:09:25,039 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-25 00:09:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-25 00:09:25,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:09:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:09:25,039 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-25 00:09:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-25 00:09:25,040 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_resume [2023-11-25 00:09:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_resume [2023-11-25 00:09:25,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:09:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:09:25,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:09:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_suspend [2023-11-25 00:09:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_suspend [2023-11-25 00:09:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:09:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:09:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-25 00:09:25,042 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-25 00:09:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-25 00:09:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-25 00:09:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:09:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:09:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:09:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-25 00:09:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-25 00:09:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-25 00:09:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-25 00:09:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-25 00:09:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-25 00:09:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure cvt_ascii_address [2023-11-25 00:09:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure cvt_ascii_address [2023-11-25 00:09:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-25 00:09:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-25 00:09:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:09:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:09:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:09:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:09:25,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:09:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:09:25,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:09:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smc91c92_cs_driver_exit_13_2 [2023-11-25 00:09:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smc91c92_cs_driver_exit_13_2 [2023-11-25 00:09:25,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:09:25,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:09:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:09:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-25 00:09:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-25 00:09:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:09:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-25 00:09:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-25 00:09:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure smc_tx_timeout [2023-11-25 00:09:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_tx_timeout [2023-11-25 00:09:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:09:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:09:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure smc_reset [2023-11-25 00:09:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_reset [2023-11-25 00:09:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-25 00:09:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-25 00:09:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-25 00:09:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-25 00:09:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:09:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:09:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:09:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:09:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure smc_hardware_send_packet [2023-11-25 00:09:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_hardware_send_packet [2023-11-25 00:09:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:09:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:09:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-25 00:09:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-25 00:09:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_smc_private [2023-11-25 00:09:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_smc_private [2023-11-25 00:09:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure osi_load_firmware [2023-11-25 00:09:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure osi_load_firmware [2023-11-25 00:09:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notice [2023-11-25 00:09:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notice [2023-11-25 00:09:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:09:25,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:09:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure smc_set_xcvr [2023-11-25 00:09:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_set_xcvr [2023-11-25 00:09:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-25 00:09:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-25 00:09:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:09:25,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-25 00:09:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-25 00:09:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:09:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-25 00:09:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-25 00:09:25,058 INFO L130 BoogieDeclarations]: Found specification of procedure mot_config [2023-11-25 00:09:25,058 INFO L138 BoogieDeclarations]: Found implementation of procedure mot_config [2023-11-25 00:09:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-11-25 00:09:25,059 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-11-25 00:09:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:09:25,059 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:09:25,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:09:25,060 INFO L130 BoogieDeclarations]: Found specification of procedure check_sig [2023-11-25 00:09:25,060 INFO L138 BoogieDeclarations]: Found implementation of procedure check_sig [2023-11-25 00:09:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-25 00:09:25,062 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-25 00:09:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:09:25,062 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:09:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-25 00:09:25,062 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-25 00:09:25,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:09:25,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:09:25,064 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-25 00:09:25,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-25 00:09:25,067 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2023-11-25 00:09:25,068 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2023-11-25 00:09:25,068 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:09:25,069 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:09:25,069 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:09:25,070 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:09:25,070 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-25 00:09:25,071 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-25 00:09:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:09:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2023-11-25 00:09:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2023-11-25 00:09:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_release [2023-11-25 00:09:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_release [2023-11-25 00:09:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:09:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:09:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_smc_private [2023-11-25 00:09:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_smc_private [2023-11-25 00:09:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2023-11-25 00:09:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2023-11-25 00:09:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:09:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:09:25,080 INFO L130 BoogieDeclarations]: Found specification of procedure smc_interrupt [2023-11-25 00:09:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_interrupt [2023-11-25 00:09:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-25 00:09:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-25 00:09:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:09:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-25 00:09:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-25 00:09:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:09:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:09:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-25 00:09:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-25 00:09:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-25 00:09:25,082 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-25 00:09:26,011 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:09:26,016 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:09:26,519 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:09:31,887 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:09:32,087 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:09:34,396 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:09:34,396 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:09:34,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:09:34 BoogieIcfgContainer [2023-11-25 00:09:34,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:09:34,403 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:09:34,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:09:34,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:09:34,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:09:19" (1/3) ... [2023-11-25 00:09:34,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6e67c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:09:34, skipping insertion in model container [2023-11-25 00:09:34,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:09:23" (2/3) ... [2023-11-25 00:09:34,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6e67c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:09:34, skipping insertion in model container [2023-11-25 00:09:34,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:09:34" (3/3) ... [2023-11-25 00:09:34,416 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2023-11-25 00:09:34,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:09:34,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:09:34,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:09:34,565 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;@2b563387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:09:34,566 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:09:34,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 1370 states, 791 states have (on average 1.2882427307206068) internal successors, (1019), 809 states have internal predecessors, (1019), 503 states have call successors, (503), 74 states have call predecessors, (503), 73 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) [2023-11-25 00:09:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-25 00:09:34,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:34,625 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:34,625 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)] === [2023-11-25 00:09:34,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash 573982481, now seen corresponding path program 1 times [2023-11-25 00:09:34,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:34,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308208010] [2023-11-25 00:09:34,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:34,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:36,047 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-25 00:09:36,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:36,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308208010] [2023-11-25 00:09:36,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308208010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:36,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:36,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:09:36,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448763859] [2023-11-25 00:09:36,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:36,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:36,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:36,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:36,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:36,103 INFO L87 Difference]: Start difference. First operand has 1370 states, 791 states have (on average 1.2882427307206068) internal successors, (1019), 809 states have internal predecessors, (1019), 503 states have call successors, (503), 74 states have call predecessors, (503), 73 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-25 00:09:38,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:38,385 INFO L93 Difference]: Finished difference Result 3986 states and 5961 transitions. [2023-11-25 00:09:38,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:38,388 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2023-11-25 00:09:38,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:38,444 INFO L225 Difference]: With dead ends: 3986 [2023-11-25 00:09:38,444 INFO L226 Difference]: Without dead ends: 2631 [2023-11-25 00:09:38,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:38,466 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 1893 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:38,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 3478 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-25 00:09:38,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-11-25 00:09:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2627. [2023-11-25 00:09:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 1532 states have (on average 1.2826370757180157) internal successors, (1965), 1567 states have internal predecessors, (1965), 950 states have call successors, (950), 143 states have call predecessors, (950), 142 states have return successors, (946), 942 states have call predecessors, (946), 946 states have call successors, (946) [2023-11-25 00:09:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3861 transitions. [2023-11-25 00:09:38,973 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3861 transitions. Word has length 141 [2023-11-25 00:09:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:38,979 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 3861 transitions. [2023-11-25 00:09:38,979 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-25 00:09:38,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3861 transitions. [2023-11-25 00:09:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-25 00:09:38,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:39,009 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:39,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:09:39,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:09:39,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash -86956093, now seen corresponding path program 1 times [2023-11-25 00:09:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:39,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427494041] [2023-11-25 00:09:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-25 00:09:39,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427494041] [2023-11-25 00:09:39,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427494041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:39,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:39,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:09:39,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642358819] [2023-11-25 00:09:39,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:39,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:39,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:39,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:39,672 INFO L87 Difference]: Start difference. First operand 2627 states and 3861 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-25 00:09:43,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:43,525 INFO L93 Difference]: Finished difference Result 7371 states and 10791 transitions. [2023-11-25 00:09:43,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:43,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2023-11-25 00:09:43,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:43,576 INFO L225 Difference]: With dead ends: 7371 [2023-11-25 00:09:43,576 INFO L226 Difference]: Without dead ends: 4769 [2023-11-25 00:09:43,596 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 [2023-11-25 00:09:43,597 INFO L413 NwaCegarLoop]: 1740 mSDtfsCounter, 1595 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:43,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 3430 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-25 00:09:43,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2023-11-25 00:09:43,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4740. [2023-11-25 00:09:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4740 states, 2767 states have (on average 1.2743043006866643) internal successors, (3526), 2835 states have internal predecessors, (3526), 1699 states have call successors, (1699), 276 states have call predecessors, (1699), 271 states have return successors, (1695), 1676 states have call predecessors, (1695), 1695 states have call successors, (1695) [2023-11-25 00:09:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6920 transitions. [2023-11-25 00:09:44,048 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6920 transitions. Word has length 149 [2023-11-25 00:09:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:44,049 INFO L495 AbstractCegarLoop]: Abstraction has 4740 states and 6920 transitions. [2023-11-25 00:09:44,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-25 00:09:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6920 transitions. [2023-11-25 00:09:44,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-25 00:09:44,053 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:44,053 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:44,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:09:44,054 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)] === [2023-11-25 00:09:44,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2019366942, now seen corresponding path program 1 times [2023-11-25 00:09:44,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:44,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304411940] [2023-11-25 00:09:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:44,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-25 00:09:44,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304411940] [2023-11-25 00:09:44,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304411940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:44,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:44,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:09:44,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749149762] [2023-11-25 00:09:44,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:44,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:44,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:44,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:44,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:44,752 INFO L87 Difference]: Start difference. First operand 4740 states and 6920 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-25 00:09:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:46,821 INFO L93 Difference]: Finished difference Result 9421 states and 13742 transitions. [2023-11-25 00:09:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:46,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 160 [2023-11-25 00:09:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:46,865 INFO L225 Difference]: With dead ends: 9421 [2023-11-25 00:09:46,865 INFO L226 Difference]: Without dead ends: 4706 [2023-11-25 00:09:46,888 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 [2023-11-25 00:09:46,891 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1928 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:46,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 1778 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-25 00:09:46,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2023-11-25 00:09:47,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4706. [2023-11-25 00:09:47,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 2753 states have (on average 1.271703596077007) internal successors, (3501), 2821 states have internal predecessors, (3501), 1675 states have call successors, (1675), 280 states have call predecessors, (1675), 275 states have return successors, (1671), 1652 states have call predecessors, (1671), 1671 states have call successors, (1671) [2023-11-25 00:09:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6847 transitions. [2023-11-25 00:09:47,372 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6847 transitions. Word has length 160 [2023-11-25 00:09:47,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:47,373 INFO L495 AbstractCegarLoop]: Abstraction has 4706 states and 6847 transitions. [2023-11-25 00:09:47,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-25 00:09:47,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6847 transitions. [2023-11-25 00:09:47,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-25 00:09:47,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:47,379 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:47,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:09:47,379 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)] === [2023-11-25 00:09:47,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash -258664396, now seen corresponding path program 1 times [2023-11-25 00:09:47,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:47,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407622622] [2023-11-25 00:09:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:47,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-25 00:09:47,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:47,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407622622] [2023-11-25 00:09:47,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407622622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:47,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:47,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:09:47,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267823838] [2023-11-25 00:09:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:47,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:09:47,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:47,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:09:47,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:09:47,963 INFO L87 Difference]: Start difference. First operand 4706 states and 6847 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-25 00:09:49,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:50,115 INFO L93 Difference]: Finished difference Result 8443 states and 12226 transitions. [2023-11-25 00:09:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:09:50,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 161 [2023-11-25 00:09:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:50,154 INFO L225 Difference]: With dead ends: 8443 [2023-11-25 00:09:50,154 INFO L226 Difference]: Without dead ends: 3780 [2023-11-25 00:09:50,178 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 [2023-11-25 00:09:50,180 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 1605 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:50,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1488 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-25 00:09:50,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2023-11-25 00:09:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 3780. [2023-11-25 00:09:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 2233 states have (on average 1.2794446932377967) internal successors, (2857), 2283 states have internal predecessors, (2857), 1285 states have call successors, (1285), 264 states have call predecessors, (1285), 259 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2023-11-25 00:09:50,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 5423 transitions. [2023-11-25 00:09:50,581 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 5423 transitions. Word has length 161 [2023-11-25 00:09:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:50,583 INFO L495 AbstractCegarLoop]: Abstraction has 3780 states and 5423 transitions. [2023-11-25 00:09:50,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-25 00:09:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 5423 transitions. [2023-11-25 00:09:50,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-25 00:09:50,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:50,589 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:50,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:09:50,590 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)] === [2023-11-25 00:09:50,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1547703338, now seen corresponding path program 1 times [2023-11-25 00:09:50,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:50,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007606485] [2023-11-25 00:09:50,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:50,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2023-11-25 00:09:51,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:51,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007606485] [2023-11-25 00:09:51,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007606485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:51,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:51,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:51,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429630632] [2023-11-25 00:09:51,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:51,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:51,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:51,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:51,615 INFO L87 Difference]: Start difference. First operand 3780 states and 5423 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-25 00:09:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:55,643 INFO L93 Difference]: Finished difference Result 3786 states and 5428 transitions. [2023-11-25 00:09:55,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:09:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2023-11-25 00:09:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:55,679 INFO L225 Difference]: With dead ends: 3786 [2023-11-25 00:09:55,680 INFO L226 Difference]: Without dead ends: 3784 [2023-11-25 00:09:55,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:09:55,684 INFO L413 NwaCegarLoop]: 1420 mSDtfsCounter, 1596 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:55,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 4246 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-25 00:09:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2023-11-25 00:09:56,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3784. [2023-11-25 00:09:56,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 2236 states have (on average 1.2790697674418605) internal successors, (2860), 2286 states have internal predecessors, (2860), 1285 states have call successors, (1285), 265 states have call predecessors, (1285), 260 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2023-11-25 00:09:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 5426 transitions. [2023-11-25 00:09:56,108 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 5426 transitions. Word has length 183 [2023-11-25 00:09:56,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:56,109 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 5426 transitions. [2023-11-25 00:09:56,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-25 00:09:56,109 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 5426 transitions. [2023-11-25 00:09:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-25 00:09:56,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:56,116 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:09:56,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:09:56,117 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)] === [2023-11-25 00:09:56,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:56,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1555491226, now seen corresponding path program 1 times [2023-11-25 00:09:56,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:56,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312380205] [2023-11-25 00:09:56,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:56,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2023-11-25 00:09:57,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:57,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312380205] [2023-11-25 00:09:57,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312380205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:57,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:57,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:57,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913762532] [2023-11-25 00:09:57,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:57,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:57,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:57,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:57,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:57,092 INFO L87 Difference]: Start difference. First operand 3784 states and 5426 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-25 00:09:58,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []