./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 527bcce2 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/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_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5 --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 0.2.3-dev-527bcce [2023-11-21 19:56:24,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:56:24,266 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:56:24,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:56:24,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:56:24,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:56:24,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:56:24,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:56:24,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:56:24,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:56:24,311 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:56:24,312 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:56:24,312 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:56:24,314 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:56:24,315 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:56:24,315 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:56:24,316 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:56:24,316 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:56:24,316 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:56:24,317 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:56:24,317 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:56:24,318 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:56:24,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:56:24,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:56:24,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:56:24,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:56:24,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:56:24,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:56:24,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:56:24,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:56:24,323 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:56:24,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:56:24,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:56:24,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:56:24,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:56:24,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:56:24,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:56:24,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:56:24,326 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:56:24,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:56:24,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:56:24,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:56:24,327 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:56:24,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:56:24,328 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e82a719a5cd0ec3a30cd42dbacb612fd330a6d3aa584d331bc796b2ce8b6a55 [2023-11-21 19:56:24,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:56:24,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:56:24,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:56:24,725 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:56:24,726 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:56:24,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2023-11-21 19:56:27,770 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:56:28,605 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:56:28,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2023-11-21 19:56:28,652 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/data/ba9409f3e/8f6c394154004c818aeebed82659edc0/FLAG7a9c31b17 [2023-11-21 19:56:28,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/data/ba9409f3e/8f6c394154004c818aeebed82659edc0 [2023-11-21 19:56:28,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:56:28,674 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:56:28,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:56:28,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:56:28,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:56:28,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:56:28" (1/1) ... [2023-11-21 19:56:28,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@293da6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:28, skipping insertion in model container [2023-11-21 19:56:28,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:56:28" (1/1) ... [2023-11-21 19:56:28,882 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:56:31,875 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:31,884 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:31,885 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:31,891 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:31,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:56:32,039 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:56:32,165 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] [2023-11-21 19:56:32,166 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] [2023-11-21 19:56:32,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5781] [2023-11-21 19:56:32,169 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] [2023-11-21 19:56:32,169 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] [2023-11-21 19:56:32,170 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] [2023-11-21 19:56:32,171 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] [2023-11-21 19:56:32,171 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] [2023-11-21 19:56:32,172 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] [2023-11-21 19:56:32,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [6005] [2023-11-21 19:56:32,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [6012] [2023-11-21 19:56:32,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6031] [2023-11-21 19:56:32,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6039] [2023-11-21 19:56:32,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [6046] [2023-11-21 19:56:32,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [6054] [2023-11-21 19:56:32,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [6061] [2023-11-21 19:56:32,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [6068] [2023-11-21 19:56:32,448 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:32,449 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:32,450 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:32,450 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_d93d9b40-6a68-4c01-8836-fa38d0b13168/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] [2023-11-21 19:56:32,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:56:32,740 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:56:32,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32 WrapperNode [2023-11-21 19:56:32,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:56:32,742 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:56:32,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:56:32,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:56:32,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:32,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,049 INFO L138 Inliner]: procedures = 407, calls = 2657, calls flagged for inlining = 199, calls inlined = 173, statements flattened = 5644 [2023-11-21 19:56:33,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:56:33,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:56:33,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:56:33,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:56:33,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,089 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:56:33,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:56:33,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:56:33,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:56:33,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (1/1) ... [2023-11-21 19:56:33,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:56:33,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:56:33,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:56:33,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93d9b40-6a68-4c01-8836-fa38d0b13168/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:56:33,697 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-21 19:56:33,710 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-21 19:56:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_detach [2023-11-21 19:56:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_detach [2023-11-21 19:56:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-21 19:56:33,713 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-21 19:56:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 19:56:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 19:56:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure mhz_3288_power [2023-11-21 19:56:33,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mhz_3288_power [2023-11-21 19:56:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:56:33,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:56:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_io [2023-11-21 19:56:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_io [2023-11-21 19:56:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_70 [2023-11-21 19:56:33,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_70 [2023-11-21 19:56:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 19:56:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 19:56:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-21 19:56:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-21 19:56:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-21 19:56:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-21 19:56:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 19:56:33,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 19:56:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 19:56:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 19:56:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_resume [2023-11-21 19:56:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_resume [2023-11-21 19:56:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 19:56:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 19:56:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:56:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_suspend [2023-11-21 19:56:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_suspend [2023-11-21 19:56:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 19:56:33,719 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 19:56:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-21 19:56:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-21 19:56:33,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-21 19:56:33,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-21 19:56:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 19:56:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 19:56:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:56:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-21 19:56:33,722 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-21 19:56:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 19:56:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 19:56:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 19:56:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 19:56:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure cvt_ascii_address [2023-11-21 19:56:33,723 INFO L138 BoogieDeclarations]: Found implementation of procedure cvt_ascii_address [2023-11-21 19:56:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 19:56:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 19:56:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 19:56:33,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 19:56:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:56:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 19:56:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 19:56:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 19:56:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 19:56:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smc91c92_cs_driver_exit_13_2 [2023-11-21 19:56:33,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smc91c92_cs_driver_exit_13_2 [2023-11-21 19:56:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:56:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 19:56:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 19:56:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 19:56:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 19:56:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:56:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-21 19:56:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-21 19:56:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure smc_tx_timeout [2023-11-21 19:56:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_tx_timeout [2023-11-21 19:56:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 19:56:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 19:56:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure smc_reset [2023-11-21 19:56:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_reset [2023-11-21 19:56:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-21 19:56:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-21 19:56:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-21 19:56:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-21 19:56:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:56:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:56:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:56:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:56:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure smc_hardware_send_packet [2023-11-21 19:56:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_hardware_send_packet [2023-11-21 19:56:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 19:56:33,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 19:56:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 19:56:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 19:56:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_smc_private [2023-11-21 19:56:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_smc_private [2023-11-21 19:56:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure osi_load_firmware [2023-11-21 19:56:33,744 INFO L138 BoogieDeclarations]: Found implementation of procedure osi_load_firmware [2023-11-21 19:56:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notice [2023-11-21 19:56:33,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notice [2023-11-21 19:56:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 19:56:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 19:56:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure smc_set_xcvr [2023-11-21 19:56:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_set_xcvr [2023-11-21 19:56:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-21 19:56:33,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-21 19:56:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:56:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-21 19:56:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-21 19:56:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:56:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 19:56:33,747 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 19:56:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure mot_config [2023-11-21 19:56:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mot_config [2023-11-21 19:56:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2023-11-21 19:56:33,748 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2023-11-21 19:56:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:56:33,748 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:56:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:56:33,749 INFO L130 BoogieDeclarations]: Found specification of procedure check_sig [2023-11-21 19:56:33,749 INFO L138 BoogieDeclarations]: Found implementation of procedure check_sig [2023-11-21 19:56:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-21 19:56:33,750 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-21 19:56:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 19:56:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 19:56:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-21 19:56:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-21 19:56:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 19:56:33,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 19:56:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-21 19:56:33,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-21 19:56:33,755 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2023-11-21 19:56:33,756 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2023-11-21 19:56:33,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 19:56:33,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 19:56:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 19:56:33,758 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 19:56:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-21 19:56:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-21 19:56:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:56:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2023-11-21 19:56:33,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2023-11-21 19:56:33,764 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_release [2023-11-21 19:56:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_release [2023-11-21 19:56:33,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:56:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:56:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_smc_private [2023-11-21 19:56:33,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_smc_private [2023-11-21 19:56:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2023-11-21 19:56:33,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2023-11-21 19:56:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 19:56:33,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 19:56:33,766 INFO L130 BoogieDeclarations]: Found specification of procedure smc_interrupt [2023-11-21 19:56:33,767 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_interrupt [2023-11-21 19:56:33,767 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-21 19:56:33,767 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-21 19:56:33,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:56:33,767 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-21 19:56:33,767 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-21 19:56:33,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 19:56:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 19:56:33,768 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-21 19:56:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-21 19:56:33,768 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-21 19:56:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-21 19:56:34,533 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:56:34,539 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:56:35,044 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:56:41,158 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 19:56:41,328 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:56:43,774 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:56:43,774 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:56:43,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:56:43 BoogieIcfgContainer [2023-11-21 19:56:43,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:56:43,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:56:43,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:56:43,786 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:56:43,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:56:28" (1/3) ... [2023-11-21 19:56:43,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770f82ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:56:43, skipping insertion in model container [2023-11-21 19:56:43,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:56:32" (2/3) ... [2023-11-21 19:56:43,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770f82ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:56:43, skipping insertion in model container [2023-11-21 19:56:43,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:56:43" (3/3) ... [2023-11-21 19:56:43,790 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2023-11-21 19:56:43,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:56:43,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 19:56:43,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:56:43,923 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;@1ed73233, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:56:43,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 19:56:43,936 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) [2023-11-21 19:56:43,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-21 19:56:43,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:43,985 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] [2023-11-21 19:56:43,986 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)] === [2023-11-21 19:56:43,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:43,993 INFO L85 PathProgramCache]: Analyzing trace with hash 573982481, now seen corresponding path program 1 times [2023-11-21 19:56:44,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:56:44,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803355659] [2023-11-21 19:56:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:44,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:56:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:45,345 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-21 19:56:45,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:56:45,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803355659] [2023-11-21 19:56:45,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803355659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:45,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:45,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:56:45,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126635673] [2023-11-21 19:56:45,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:45,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:56:45,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:56:45,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:56:45,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:56:45,402 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) [2023-11-21 19:56:48,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:56:48,036 INFO L93 Difference]: Finished difference Result 3986 states and 5961 transitions. [2023-11-21 19:56:48,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:56:48,038 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 [2023-11-21 19:56:48,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:56:48,091 INFO L225 Difference]: With dead ends: 3986 [2023-11-21 19:56:48,092 INFO L226 Difference]: Without dead ends: 2631 [2023-11-21 19:56:48,111 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 [2023-11-21 19:56:48,114 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 1893 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:56:48,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 3478 Invalid, 547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-21 19:56:48,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2023-11-21 19:56:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2627. [2023-11-21 19:56:48,389 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) [2023-11-21 19:56:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3861 transitions. [2023-11-21 19:56:48,420 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3861 transitions. Word has length 141 [2023-11-21 19:56:48,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:56:48,421 INFO L495 AbstractCegarLoop]: Abstraction has 2627 states and 3861 transitions. [2023-11-21 19:56:48,422 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) [2023-11-21 19:56:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3861 transitions. [2023-11-21 19:56:48,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-21 19:56:48,431 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:48,431 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] [2023-11-21 19:56:48,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:56:48,432 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)] === [2023-11-21 19:56:48,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:48,433 INFO L85 PathProgramCache]: Analyzing trace with hash -86956093, now seen corresponding path program 1 times [2023-11-21 19:56:48,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:56:48,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605397741] [2023-11-21 19:56:48,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:48,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:56:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-21 19:56:49,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:56:49,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605397741] [2023-11-21 19:56:49,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605397741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:49,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:49,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:56:49,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383087438] [2023-11-21 19:56:49,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:49,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:56:49,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:56:49,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:56:49,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:56:49,068 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) [2023-11-21 19:56:52,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:56:52,977 INFO L93 Difference]: Finished difference Result 7371 states and 10791 transitions. [2023-11-21 19:56:52,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:56:52,978 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 [2023-11-21 19:56:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:56:53,021 INFO L225 Difference]: With dead ends: 7371 [2023-11-21 19:56:53,021 INFO L226 Difference]: Without dead ends: 4769 [2023-11-21 19:56:53,035 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 [2023-11-21 19:56:53,036 INFO L413 NwaCegarLoop]: 1740 mSDtfsCounter, 1595 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:56:53,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 3430 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-21 19:56:53,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2023-11-21 19:56:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4740. [2023-11-21 19:56:53,367 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) [2023-11-21 19:56:53,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6920 transitions. [2023-11-21 19:56:53,414 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6920 transitions. Word has length 149 [2023-11-21 19:56:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:56:53,416 INFO L495 AbstractCegarLoop]: Abstraction has 4740 states and 6920 transitions. [2023-11-21 19:56:53,416 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) [2023-11-21 19:56:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6920 transitions. [2023-11-21 19:56:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-21 19:56:53,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:53,422 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] [2023-11-21 19:56:53,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:56:53,423 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)] === [2023-11-21 19:56:53,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:53,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2019366942, now seen corresponding path program 1 times [2023-11-21 19:56:53,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:56:53,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322689537] [2023-11-21 19:56:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:53,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:56:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-21 19:56:54,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:56:54,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322689537] [2023-11-21 19:56:54,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322689537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:54,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:54,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:56:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576927721] [2023-11-21 19:56:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:54,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:56:54,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:56:54,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:56:54,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:56:54,062 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) [2023-11-21 19:56:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:56:55,201 INFO L93 Difference]: Finished difference Result 9421 states and 13742 transitions. [2023-11-21 19:56:55,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:56:55,201 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 [2023-11-21 19:56:55,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:56:55,245 INFO L225 Difference]: With dead ends: 9421 [2023-11-21 19:56:55,245 INFO L226 Difference]: Without dead ends: 4706 [2023-11-21 19:56:55,271 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 [2023-11-21 19:56:55,274 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 1928 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 19:56:55,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 1778 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 19:56:55,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2023-11-21 19:56:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4706. [2023-11-21 19:56:55,688 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) [2023-11-21 19:56:55,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6847 transitions. [2023-11-21 19:56:55,799 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6847 transitions. Word has length 160 [2023-11-21 19:56:55,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:56:55,800 INFO L495 AbstractCegarLoop]: Abstraction has 4706 states and 6847 transitions. [2023-11-21 19:56:55,800 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) [2023-11-21 19:56:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6847 transitions. [2023-11-21 19:56:55,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-21 19:56:55,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:55,804 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] [2023-11-21 19:56:55,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:56:55,805 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)] === [2023-11-21 19:56:55,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:55,806 INFO L85 PathProgramCache]: Analyzing trace with hash -258664396, now seen corresponding path program 1 times [2023-11-21 19:56:55,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:56:55,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780913532] [2023-11-21 19:56:55,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:55,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:56:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:56:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-11-21 19:56:56,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:56:56,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780913532] [2023-11-21 19:56:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780913532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:56:56,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:56:56,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:56:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036259883] [2023-11-21 19:56:56,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:56:56,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:56:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:56:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:56:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:56:56,322 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) [2023-11-21 19:56:58,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:56:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:56:59,035 INFO L93 Difference]: Finished difference Result 8443 states and 12226 transitions. [2023-11-21 19:56:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:56:59,036 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 [2023-11-21 19:56:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:56:59,066 INFO L225 Difference]: With dead ends: 8443 [2023-11-21 19:56:59,067 INFO L226 Difference]: Without dead ends: 3780 [2023-11-21 19:56:59,088 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 [2023-11-21 19:56:59,090 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 1605 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2023-11-21 19:56:59,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 1488 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-21 19:56:59,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2023-11-21 19:56:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 3780. [2023-11-21 19:56:59,474 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) [2023-11-21 19:56:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 5423 transitions. [2023-11-21 19:56:59,499 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 5423 transitions. Word has length 161 [2023-11-21 19:56:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:56:59,500 INFO L495 AbstractCegarLoop]: Abstraction has 3780 states and 5423 transitions. [2023-11-21 19:56:59,500 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) [2023-11-21 19:56:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 5423 transitions. [2023-11-21 19:56:59,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-21 19:56:59,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:56:59,506 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] [2023-11-21 19:56:59,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:56:59,507 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)] === [2023-11-21 19:56:59,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:56:59,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1547703338, now seen corresponding path program 1 times [2023-11-21 19:56:59,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:56:59,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892037809] [2023-11-21 19:56:59,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:56:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:56:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:57:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2023-11-21 19:57:00,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:57:00,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892037809] [2023-11-21 19:57:00,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892037809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:57:00,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:57:00,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:57:00,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835974096] [2023-11-21 19:57:00,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:57:00,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:57:00,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:57:00,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:57:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:57:00,477 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) [2023-11-21 19:57:02,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:57:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:57:03,939 INFO L93 Difference]: Finished difference Result 3786 states and 5428 transitions. [2023-11-21 19:57:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:57:03,940 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 [2023-11-21 19:57:03,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:57:03,970 INFO L225 Difference]: With dead ends: 3786 [2023-11-21 19:57:03,970 INFO L226 Difference]: Without dead ends: 3784 [2023-11-21 19:57:03,973 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 [2023-11-21 19:57:03,974 INFO L413 NwaCegarLoop]: 1420 mSDtfsCounter, 1596 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:57:03,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 4246 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-21 19:57:03,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2023-11-21 19:57:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3784. [2023-11-21 19:57:04,354 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) [2023-11-21 19:57:04,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 5426 transitions. [2023-11-21 19:57:04,371 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 5426 transitions. Word has length 183 [2023-11-21 19:57:04,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:57:04,372 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 5426 transitions. [2023-11-21 19:57:04,373 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) [2023-11-21 19:57:04,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 5426 transitions. [2023-11-21 19:57:04,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-21 19:57:04,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:57:04,378 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] [2023-11-21 19:57:04,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 19:57:04,378 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)] === [2023-11-21 19:57:04,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:57:04,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1555491226, now seen corresponding path program 1 times [2023-11-21 19:57:04,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:57:04,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215228122] [2023-11-21 19:57:04,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:57:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:57:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:57:05,153 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2023-11-21 19:57:05,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:57:05,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215228122] [2023-11-21 19:57:05,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215228122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:57:05,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:57:05,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:57:05,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423915163] [2023-11-21 19:57:05,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:57:05,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:57:05,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:57:05,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:57:05,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:57:05,156 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) [2023-11-21 19:57:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:57:07,107 INFO L93 Difference]: Finished difference Result 3790 states and 5431 transitions. [2023-11-21 19:57:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:57:07,107 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 192 [2023-11-21 19:57:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:57:07,137 INFO L225 Difference]: With dead ends: 3790 [2023-11-21 19:57:07,137 INFO L226 Difference]: Without dead ends: 3788 [2023-11-21 19:57:07,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 19:57:07,141 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 1590 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 4249 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:57:07,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 4249 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-21 19:57:07,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2023-11-21 19:57:07,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3788. [2023-11-21 19:57:07,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3788 states, 2239 states have (on average 1.2786958463599822) internal successors, (2863), 2289 states have internal predecessors, (2863), 1285 states have call successors, (1285), 266 states have call predecessors, (1285), 261 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2023-11-21 19:57:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 5429 transitions. [2023-11-21 19:57:07,533 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 5429 transitions. Word has length 192 [2023-11-21 19:57:07,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:57:07,536 INFO L495 AbstractCegarLoop]: Abstraction has 3788 states and 5429 transitions. [2023-11-21 19:57:07,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-21 19:57:07,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 5429 transitions. [2023-11-21 19:57:07,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-21 19:57:07,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:57:07,542 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 5, 5, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:57:07,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 19:57:07,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:57:07,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:57:07,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1577028281, now seen corresponding path program 1 times [2023-11-21 19:57:07,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:57:07,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236734194] [2023-11-21 19:57:07,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:57:07,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:57:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:57:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2023-11-21 19:57:08,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:57:08,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236734194] [2023-11-21 19:57:08,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236734194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:57:08,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:57:08,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:57:08,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229152946] [2023-11-21 19:57:08,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:57:08,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 19:57:08,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:57:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 19:57:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:57:08,346 INFO L87 Difference]: Start difference. First operand 3788 states and 5429 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, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-11-21 19:57:10,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []