./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:52,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:52,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:36:52,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:52,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:52,735 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:52,735 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:52,736 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:52,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:52,737 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:52,738 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:52,738 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:52,739 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:52,739 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:52,740 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:52,740 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:52,741 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:52,741 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:52,742 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:52,743 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:52,743 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:52,744 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:52,745 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:52,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:52,758 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:52,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:52,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:52,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:52,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:52,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:52,762 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:52,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:52,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:52,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:52,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:52,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:52,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:52,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:52,766 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:52,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:52,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:52,768 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:52,768 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:52,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:52,769 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2023-11-23 20:36:53,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:53,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:53,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:53,051 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:53,052 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:53,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-23 20:36:56,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:56,995 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:56,996 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-23 20:36:57,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/data/7edef7eac/c97ed50dbd4e4db889a22193f2f5dde9/FLAGb591baa0f [2023-11-23 20:36:57,062 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/data/7edef7eac/c97ed50dbd4e4db889a22193f2f5dde9 [2023-11-23 20:36:57,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:57,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:57,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:57,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:57,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:57,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:57" (1/1) ... [2023-11-23 20:36:57,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b42c0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:57, skipping insertion in model container [2023-11-23 20:36:57,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:57" (1/1) ... [2023-11-23 20:36:57,311 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:59,990 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2023-11-23 20:36:59,994 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2023-11-23 20:37:00,000 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2023-11-23 20:37:00,001 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2023-11-23 20:37:00,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:00,096 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:37:00,263 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5204] [2023-11-23 20:37:00,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5211] [2023-11-23 20:37:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5246-5247] [2023-11-23 20:37:00,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5252-5254] [2023-11-23 20:37:00,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5314] [2023-11-23 20:37:00,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5317] [2023-11-23 20:37:00,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5320] [2023-11-23 20:37:00,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5323] [2023-11-23 20:37:00,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5392] [2023-11-23 20:37:00,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5438] [2023-11-23 20:37:00,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5446] [2023-11-23 20:37:00,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5453] [2023-11-23 20:37:00,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5461] [2023-11-23 20:37:00,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5468] [2023-11-23 20:37:00,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5476] [2023-11-23 20:37:00,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5483] [2023-11-23 20:37:00,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5490] [2023-11-23 20:37:00,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5559-5560] [2023-11-23 20:37:00,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5593-5594] [2023-11-23 20:37:00,599 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2023-11-23 20:37:00,600 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2023-11-23 20:37:00,601 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2023-11-23 20:37:00,601 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_48b57042-535d-4ddc-b7cc-85e7a47e800e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2023-11-23 20:37:00,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:37:00,861 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:00,861 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:00,861 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:37:00,870 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:37:00,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00 WrapperNode [2023-11-23 20:37:00,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:37:00,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:00,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:37:00,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:37:00,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,227 INFO L138 Inliner]: procedures = 391, calls = 1848, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 5000 [2023-11-23 20:37:01,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:37:01,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:37:01,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:37:01,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:37:01,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,568 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:37:01,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:37:01,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:37:01,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:37:01,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (1/1) ... [2023-11-23 20:37:01,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:37:01,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:37:01,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:37:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:37:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:37:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 20:37:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 20:37:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:37:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:37:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 20:37:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 20:37:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:37:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:37:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-11-23 20:37:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-11-23 20:37:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-23 20:37:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-23 20:37:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-23 20:37:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-23 20:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-23 20:37:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-23 20:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 20:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-23 20:37:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-23 20:37:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:37:01,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:37:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-23 20:37:01,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-23 20:37:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 20:37:01,659 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 20:37:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:37:01,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:37:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 20:37:01,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 20:37:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:37:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 20:37:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 20:37:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-23 20:37:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-23 20:37:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:37:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-23 20:37:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-23 20:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:37:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:37:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:37:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:37:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:37:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:37:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:37:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:37:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:37:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:37:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-23 20:37:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-23 20:37:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-23 20:37:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-23 20:37:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:37:01,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:37:01,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 20:37:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 20:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-23 20:37:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-23 20:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 20:37:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 20:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-23 20:37:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-23 20:37:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 20:37:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 20:37:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-23 20:37:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-23 20:37:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-23 20:37:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-23 20:37:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 20:37:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 20:37:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:37:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-23 20:37:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-23 20:37:01,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48b57042-535d-4ddc-b7cc-85e7a47e800e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-23 20:37:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-23 20:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 20:37:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 20:37:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:37:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:37:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:37:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:37:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:37:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:37:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 20:37:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 20:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-23 20:37:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-23 20:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:37:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 20:37:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 20:37:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 20:37:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 20:37:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:37:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:37:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-23 20:37:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-23 20:37:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:37:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:37:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:37:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 20:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 20:37:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 20:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 20:37:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:37:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:37:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 20:37:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 20:37:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:37:01,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:37:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:37:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:37:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 20:37:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 20:37:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 20:37:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 20:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:37:01,691 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:37:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 20:37:01,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 20:37:01,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:37:01,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:37:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 20:37:01,696 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 20:37:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2023-11-23 20:37:01,696 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2023-11-23 20:37:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-23 20:37:01,696 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-23 20:37:01,696 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 20:37:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 20:37:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:37:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:37:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 20:37:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 20:37:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-23 20:37:01,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-23 20:37:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:37:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-23 20:37:01,698 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-23 20:37:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:37:01,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:37:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-23 20:37:01,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-23 20:37:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2023-11-23 20:37:01,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2023-11-23 20:37:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-23 20:37:01,699 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-23 20:37:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 20:37:01,700 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 20:37:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:37:01,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:37:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-23 20:37:01,700 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-23 20:37:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-23 20:37:01,700 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-23 20:37:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 20:37:01,701 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 20:37:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-23 20:37:01,701 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-23 20:37:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-23 20:37:01,701 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-23 20:37:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:37:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-23 20:37:01,702 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-23 20:37:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:37:01,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:37:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-23 20:37:01,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-23 20:37:01,702 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-23 20:37:01,703 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-23 20:37:02,397 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:37:02,403 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:37:02,823 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:37:06,224 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:37:06,226 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 20:37:06,752 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-4: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2023-11-23 20:37:06,752 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-4: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2023-11-23 20:37:06,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet751#1 := ~tmp___4~7#1; [2023-11-23 20:37:06,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet751#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet751#1 % 18446744073709551616 <= 2096896; [2023-11-23 20:37:06,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-2: assume 0 == #t~nondet751#1 % 18446744073709551616;havoc #t~nondet751#1; [2023-11-23 20:37:06,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-2: assume !(0 == #t~nondet751#1 % 18446744073709551616);havoc #t~nondet751#1; [2023-11-23 20:37:06,753 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret752#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-23 20:37:06,755 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: assume -9223372036854775808 <= #t~ret752#1 && #t~ret752#1 <= 9223372036854775807;havoc #t~ret752#1; [2023-11-23 20:37:06,756 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-23 20:37:06,756 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet751#1 := 0; [2023-11-23 20:37:06,937 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:37:09,608 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:37:09,608 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:37:09,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:09 BoogieIcfgContainer [2023-11-23 20:37:09,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:37:09,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:37:09,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:37:09,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:37:09,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:57" (1/3) ... [2023-11-23 20:37:09,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232330ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:09, skipping insertion in model container [2023-11-23 20:37:09,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:37:00" (2/3) ... [2023-11-23 20:37:09,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232330ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:37:09, skipping insertion in model container [2023-11-23 20:37:09,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:37:09" (3/3) ... [2023-11-23 20:37:09,624 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-23 20:37:09,647 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:37:09,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 20:37:09,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:37:09,767 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;@3a61e536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:37:09,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 20:37:09,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 1548 states, 855 states have (on average 1.302923976608187) internal successors, (1114), 897 states have internal predecessors, (1114), 611 states have call successors, (611), 81 states have call predecessors, (611), 80 states have return successors, (606), 593 states have call predecessors, (606), 606 states have call successors, (606) [2023-11-23 20:37:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-23 20:37:09,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:09,798 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:09,799 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)] === [2023-11-23 20:37:09,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1504860602, now seen corresponding path program 1 times [2023-11-23 20:37:09,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:09,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957524923] [2023-11-23 20:37:09,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:09,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:37:10,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:10,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957524923] [2023-11-23 20:37:10,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957524923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:10,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:10,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:10,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152253214] [2023-11-23 20:37:10,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:10,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:10,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:10,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:10,760 INFO L87 Difference]: Start difference. First operand has 1548 states, 855 states have (on average 1.302923976608187) internal successors, (1114), 897 states have internal predecessors, (1114), 611 states have call successors, (611), 81 states have call predecessors, (611), 80 states have return successors, (606), 593 states have call predecessors, (606), 606 states have call successors, (606) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:13,230 INFO L93 Difference]: Finished difference Result 4559 states and 6964 transitions. [2023-11-23 20:37:13,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:13,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2023-11-23 20:37:13,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:13,339 INFO L225 Difference]: With dead ends: 4559 [2023-11-23 20:37:13,341 INFO L226 Difference]: Without dead ends: 3010 [2023-11-23 20:37:13,381 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 [2023-11-23 20:37:13,388 INFO L413 NwaCegarLoop]: 2069 mSDtfsCounter, 2250 mSDsluCounter, 2027 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2250 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:13,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2250 Valid, 4096 Invalid, 536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 20:37:13,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2023-11-23 20:37:13,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 3006. [2023-11-23 20:37:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3006 states, 1665 states have (on average 1.297897897897898) internal successors, (2161), 1745 states have internal predecessors, (2161), 1181 states have call successors, (1181), 158 states have call predecessors, (1181), 157 states have return successors, (1178), 1152 states have call predecessors, (1178), 1178 states have call successors, (1178) [2023-11-23 20:37:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3006 states to 3006 states and 4520 transitions. [2023-11-23 20:37:14,059 INFO L78 Accepts]: Start accepts. Automaton has 3006 states and 4520 transitions. Word has length 57 [2023-11-23 20:37:14,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:14,061 INFO L495 AbstractCegarLoop]: Abstraction has 3006 states and 4520 transitions. [2023-11-23 20:37:14,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:14,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3006 states and 4520 transitions. [2023-11-23 20:37:14,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 20:37:14,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:14,078 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:14,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:37:14,079 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)] === [2023-11-23 20:37:14,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash 836648928, now seen corresponding path program 1 times [2023-11-23 20:37:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576159460] [2023-11-23 20:37:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:37:14,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:14,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576159460] [2023-11-23 20:37:14,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576159460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:14,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:14,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:14,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686070751] [2023-11-23 20:37:14,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:14,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:14,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:14,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:14,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:14,431 INFO L87 Difference]: Start difference. First operand 3006 states and 4520 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:16,692 INFO L93 Difference]: Finished difference Result 8652 states and 13038 transitions. [2023-11-23 20:37:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:16,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2023-11-23 20:37:16,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:16,752 INFO L225 Difference]: With dead ends: 8652 [2023-11-23 20:37:16,752 INFO L226 Difference]: Without dead ends: 5655 [2023-11-23 20:37:16,774 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 [2023-11-23 20:37:16,776 INFO L413 NwaCegarLoop]: 2469 mSDtfsCounter, 2063 mSDsluCounter, 1998 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:16,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2063 Valid, 4467 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 20:37:16,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2023-11-23 20:37:17,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5626. [2023-11-23 20:37:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5626 states, 3102 states have (on average 1.296260477111541) internal successors, (4021), 3254 states have internal predecessors, (4021), 2228 states have call successors, (2228), 298 states have call predecessors, (2228), 293 states have return successors, (2239), 2161 states have call predecessors, (2239), 2225 states have call successors, (2239) [2023-11-23 20:37:17,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5626 states to 5626 states and 8488 transitions. [2023-11-23 20:37:17,427 INFO L78 Accepts]: Start accepts. Automaton has 5626 states and 8488 transitions. Word has length 60 [2023-11-23 20:37:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:17,428 INFO L495 AbstractCegarLoop]: Abstraction has 5626 states and 8488 transitions. [2023-11-23 20:37:17,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 5626 states and 8488 transitions. [2023-11-23 20:37:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 20:37:17,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:17,435 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:17,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:37:17,435 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)] === [2023-11-23 20:37:17,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash -389345039, now seen corresponding path program 1 times [2023-11-23 20:37:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:17,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418126294] [2023-11-23 20:37:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:17,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:37:17,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418126294] [2023-11-23 20:37:17,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418126294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:17,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:17,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:17,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634143544] [2023-11-23 20:37:17,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:17,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:17,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:17,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:17,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:17,674 INFO L87 Difference]: Start difference. First operand 5626 states and 8488 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:20,355 INFO L93 Difference]: Finished difference Result 16328 states and 24604 transitions. [2023-11-23 20:37:20,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:20,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2023-11-23 20:37:20,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:20,489 INFO L225 Difference]: With dead ends: 16328 [2023-11-23 20:37:20,490 INFO L226 Difference]: Without dead ends: 10711 [2023-11-23 20:37:20,543 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 [2023-11-23 20:37:20,549 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 2089 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2089 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:20,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2089 Valid, 4036 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 20:37:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10711 states. [2023-11-23 20:37:21,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10711 to 10680. [2023-11-23 20:37:21,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10680 states, 5886 states have (on average 1.2910295616717635) internal successors, (7599), 6174 states have internal predecessors, (7599), 4222 states have call successors, (4222), 580 states have call predecessors, (4222), 569 states have return successors, (4249), 4089 states have call predecessors, (4249), 4219 states have call successors, (4249) [2023-11-23 20:37:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10680 states to 10680 states and 16070 transitions. [2023-11-23 20:37:22,012 INFO L78 Accepts]: Start accepts. Automaton has 10680 states and 16070 transitions. Word has length 64 [2023-11-23 20:37:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:22,014 INFO L495 AbstractCegarLoop]: Abstraction has 10680 states and 16070 transitions. [2023-11-23 20:37:22,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 10680 states and 16070 transitions. [2023-11-23 20:37:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 20:37:22,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:22,018 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:22,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:37:22,019 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)] === [2023-11-23 20:37:22,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash 255710506, now seen corresponding path program 1 times [2023-11-23 20:37:22,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:22,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252124836] [2023-11-23 20:37:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:22,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:22,342 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-23 20:37:22,343 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:22,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252124836] [2023-11-23 20:37:22,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252124836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:22,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:22,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:22,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067648438] [2023-11-23 20:37:22,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:22,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:22,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:22,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:22,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:22,346 INFO L87 Difference]: Start difference. First operand 10680 states and 16070 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:24,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:24,611 INFO L93 Difference]: Finished difference Result 18228 states and 27316 transitions. [2023-11-23 20:37:24,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:24,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2023-11-23 20:37:24,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:24,710 INFO L225 Difference]: With dead ends: 18228 [2023-11-23 20:37:24,710 INFO L226 Difference]: Without dead ends: 7557 [2023-11-23 20:37:24,798 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 [2023-11-23 20:37:24,803 INFO L413 NwaCegarLoop]: 2874 mSDtfsCounter, 1340 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 4875 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:24,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 4875 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 20:37:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7557 states. [2023-11-23 20:37:25,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7557 to 7529. [2023-11-23 20:37:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7529 states, 4229 states have (on average 1.2830456372664933) internal successors, (5426), 4435 states have internal predecessors, (5426), 2855 states have call successors, (2855), 448 states have call predecessors, (2855), 442 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-23 20:37:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7529 states to 7529 states and 11148 transitions. [2023-11-23 20:37:25,741 INFO L78 Accepts]: Start accepts. Automaton has 7529 states and 11148 transitions. Word has length 67 [2023-11-23 20:37:25,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:25,742 INFO L495 AbstractCegarLoop]: Abstraction has 7529 states and 11148 transitions. [2023-11-23 20:37:25,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-23 20:37:25,742 INFO L276 IsEmpty]: Start isEmpty. Operand 7529 states and 11148 transitions. [2023-11-23 20:37:25,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 20:37:25,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:25,744 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:25,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:37:25,745 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)] === [2023-11-23 20:37:25,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:25,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1397328152, now seen corresponding path program 1 times [2023-11-23 20:37:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:25,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696575688] [2023-11-23 20:37:25,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:25,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-23 20:37:25,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:25,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696575688] [2023-11-23 20:37:25,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696575688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:25,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:25,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:25,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93058253] [2023-11-23 20:37:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:25,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:25,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:25,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:25,966 INFO L87 Difference]: Start difference. First operand 7529 states and 11148 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 20:37:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:27,467 INFO L93 Difference]: Finished difference Result 15014 states and 22244 transitions. [2023-11-23 20:37:27,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:27,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2023-11-23 20:37:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:27,525 INFO L225 Difference]: With dead ends: 15014 [2023-11-23 20:37:27,525 INFO L226 Difference]: Without dead ends: 7529 [2023-11-23 20:37:27,562 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 [2023-11-23 20:37:27,563 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 7 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:27,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4066 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 20:37:27,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7529 states. [2023-11-23 20:37:28,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7529 to 7529. [2023-11-23 20:37:28,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7529 states, 4229 states have (on average 1.2811539371009695) internal successors, (5418), 4435 states have internal predecessors, (5418), 2855 states have call successors, (2855), 448 states have call predecessors, (2855), 442 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-23 20:37:28,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7529 states to 7529 states and 11140 transitions. [2023-11-23 20:37:28,358 INFO L78 Accepts]: Start accepts. Automaton has 7529 states and 11140 transitions. Word has length 86 [2023-11-23 20:37:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:28,359 INFO L495 AbstractCegarLoop]: Abstraction has 7529 states and 11140 transitions. [2023-11-23 20:37:28,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 20:37:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 7529 states and 11140 transitions. [2023-11-23 20:37:28,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 20:37:28,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:28,361 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:28,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:37:28,362 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)] === [2023-11-23 20:37:28,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash -683895192, now seen corresponding path program 1 times [2023-11-23 20:37:28,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:28,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605719302] [2023-11-23 20:37:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-23 20:37:28,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:28,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605719302] [2023-11-23 20:37:28,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605719302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:28,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:28,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:37:28,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515493061] [2023-11-23 20:37:28,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:28,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:37:28,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:28,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:37:28,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:37:28,808 INFO L87 Difference]: Start difference. First operand 7529 states and 11140 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 20:37:30,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:30,934 INFO L93 Difference]: Finished difference Result 7535 states and 11145 transitions. [2023-11-23 20:37:30,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:37:30,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2023-11-23 20:37:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:30,981 INFO L225 Difference]: With dead ends: 7535 [2023-11-23 20:37:30,982 INFO L226 Difference]: Without dead ends: 7533 [2023-11-23 20:37:30,988 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 [2023-11-23 20:37:30,989 INFO L413 NwaCegarLoop]: 2035 mSDtfsCounter, 2267 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 6091 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:30,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 6091 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 20:37:31,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7533 states. [2023-11-23 20:37:31,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7533 to 7533. [2023-11-23 20:37:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7533 states, 4232 states have (on average 1.2809546313799622) internal successors, (5421), 4438 states have internal predecessors, (5421), 2855 states have call successors, (2855), 449 states have call predecessors, (2855), 443 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-23 20:37:31,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7533 states to 7533 states and 11143 transitions. [2023-11-23 20:37:31,701 INFO L78 Accepts]: Start accepts. Automaton has 7533 states and 11143 transitions. Word has length 97 [2023-11-23 20:37:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:31,702 INFO L495 AbstractCegarLoop]: Abstraction has 7533 states and 11143 transitions. [2023-11-23 20:37:31,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-23 20:37:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7533 states and 11143 transitions. [2023-11-23 20:37:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-23 20:37:31,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:31,705 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-23 20:37:31,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:37:31,705 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)] === [2023-11-23 20:37:31,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash -143794682, now seen corresponding path program 1 times [2023-11-23 20:37:31,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:31,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658904729] [2023-11-23 20:37:31,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:32,091 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-23 20:37:32,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:32,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658904729] [2023-11-23 20:37:32,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658904729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:32,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:32,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:37:32,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847924656] [2023-11-23 20:37:32,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:32,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:37:32,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:32,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:37:32,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:37:32,095 INFO L87 Difference]: Start difference. First operand 7533 states and 11143 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:37:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:33,775 INFO L93 Difference]: Finished difference Result 7539 states and 11148 transitions. [2023-11-23 20:37:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:37:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2023-11-23 20:37:33,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:33,820 INFO L225 Difference]: With dead ends: 7539 [2023-11-23 20:37:33,820 INFO L226 Difference]: Without dead ends: 7537 [2023-11-23 20:37:33,824 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 [2023-11-23 20:37:33,825 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 2262 mSDsluCounter, 4056 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 6094 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:33,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 6094 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-23 20:37:33,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2023-11-23 20:37:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 7537. [2023-11-23 20:37:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7537 states, 4235 states have (on average 1.2807556080283353) internal successors, (5424), 4441 states have internal predecessors, (5424), 2855 states have call successors, (2855), 450 states have call predecessors, (2855), 444 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-23 20:37:34,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7537 states to 7537 states and 11146 transitions. [2023-11-23 20:37:34,797 INFO L78 Accepts]: Start accepts. Automaton has 7537 states and 11146 transitions. Word has length 102 [2023-11-23 20:37:34,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:34,799 INFO L495 AbstractCegarLoop]: Abstraction has 7537 states and 11146 transitions. [2023-11-23 20:37:34,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:37:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 7537 states and 11146 transitions. [2023-11-23 20:37:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 20:37:34,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:34,802 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 4, 4, 4, 4, 4, 4, 3, 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] [2023-11-23 20:37:34,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 20:37:34,803 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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)] === [2023-11-23 20:37:34,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1140916326, now seen corresponding path program 1 times [2023-11-23 20:37:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:34,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282167997] [2023-11-23 20:37:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:34,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-23 20:37:35,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:35,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282167997] [2023-11-23 20:37:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282167997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:35,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:35,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:37:35,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968924615] [2023-11-23 20:37:35,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:35,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:37:35,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:35,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:37:35,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:37:35,282 INFO L87 Difference]: Start difference. First operand 7537 states and 11146 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)