./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-hippi-rrunner.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ --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 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:49:22,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:49:22,179 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:49:22,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:49:22,192 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:49:22,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:49:22,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:49:22,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:49:22,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:49:22,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:49:22,232 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:49:22,233 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:49:22,233 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:49:22,235 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:49:22,235 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:49:22,235 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:49:22,236 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:49:22,236 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:49:22,237 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:49:22,237 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:49:22,238 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:49:22,238 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:49:22,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:49:22,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:49:22,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:49:22,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:49:22,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:49:22,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:49:22,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:49:22,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:49:22,243 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:49:22,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:49:22,244 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:49:22,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:22,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:49:22,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:49:22,245 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:49:22,245 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:49:22,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:49:22,245 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:49:22,246 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:49:22,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:49:22,246 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10193951df4eb6f67d99eaaa8758acfa57b6461ca38071389a41cbdc5c585dfb [2023-11-19 04:49:22,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:49:22,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:49:22,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:49:22,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:49:22,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:49:22,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2023-11-19 04:49:25,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:49:26,146 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:49:26,146 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2023-11-19 04:49:26,193 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/data/d3eabb63e/c3314e810b9b4ed1b047316cd428f331/FLAG807bfca59 [2023-11-19 04:49:26,210 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/data/d3eabb63e/c3314e810b9b4ed1b047316cd428f331 [2023-11-19 04:49:26,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:49:26,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:49:26,223 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:26,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:49:26,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:49:26,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:26" (1/1) ... [2023-11-19 04:49:26,232 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478e2471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:26, skipping insertion in model container [2023-11-19 04:49:26,232 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:49:26" (1/1) ... [2023-11-19 04:49:26,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:49:29,443 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2023-11-19 04:49:29,447 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2023-11-19 04:49:29,448 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2023-11-19 04:49:29,449 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2023-11-19 04:49:29,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:29,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:49:29,729 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"); [5891] [2023-11-19 04:49:29,731 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)); [5898] [2023-11-19 04:49:29,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5905] [2023-11-19 04:49:29,734 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)); [5960-5961] [2023-11-19 04:49:29,735 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"); [5966-5968] [2023-11-19 04:49:29,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5982] [2023-11-19 04:49:29,741 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6078] [2023-11-19 04:49:29,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6085] [2023-11-19 04:49:29,750 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)); [6245-6246] [2023-11-19 04:49:29,752 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)); [6279-6280] [2023-11-19 04:49:29,753 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" (103), "i" (12UL)); [6316-6317] [2023-11-19 04:49:29,754 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" (115), "i" (12UL)); [6353-6354] [2023-11-19 04:49:29,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6852] [2023-11-19 04:49:29,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6864] [2023-11-19 04:49:29,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6877] [2023-11-19 04:49:29,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7146] [2023-11-19 04:49:29,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7149] [2023-11-19 04:49:29,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7218] [2023-11-19 04:49:29,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7221] [2023-11-19 04:49:29,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7224] [2023-11-19 04:49:29,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7247] [2023-11-19 04:49:29,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7254] [2023-11-19 04:49:29,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7257] [2023-11-19 04:49:29,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7269] [2023-11-19 04:49:29,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7316] [2023-11-19 04:49:29,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7323] [2023-11-19 04:49:29,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7332] [2023-11-19 04:49:29,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7344] [2023-11-19 04:49:29,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7372] [2023-11-19 04:49:29,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7450] [2023-11-19 04:49:29,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7521] [2023-11-19 04:49:29,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7524] [2023-11-19 04:49:29,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7568] [2023-11-19 04:49:29,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7770] [2023-11-19 04:49:29,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7798] [2023-11-19 04:49:29,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7806] [2023-11-19 04:49:29,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7831] [2023-11-19 04:49:29,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7845] [2023-11-19 04:49:29,829 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7853] [2023-11-19 04:49:29,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7861] [2023-11-19 04:49:29,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7869] [2023-11-19 04:49:29,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7932] [2023-11-19 04:49:29,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7940] [2023-11-19 04:49:29,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7948] [2023-11-19 04:49:29,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7970] [2023-11-19 04:49:29,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8069] [2023-11-19 04:49:29,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8145] [2023-11-19 04:49:29,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8168] [2023-11-19 04:49:29,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8258] [2023-11-19 04:49:29,853 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8335] [2023-11-19 04:49:29,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8662] [2023-11-19 04:49:29,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8735] [2023-11-19 04:49:29,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8737] [2023-11-19 04:49:29,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8747] [2023-11-19 04:49:29,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8796] [2023-11-19 04:49:29,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8798] [2023-11-19 04:49:29,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8817] [2023-11-19 04:49:29,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [9022] [2023-11-19 04:49:29,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [9025] [2023-11-19 04:49:29,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [9028] [2023-11-19 04:49:29,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [9031] [2023-11-19 04:49:29,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)rq->ifr_ifru.ifru_data): "ebx"); [9034] [2023-11-19 04:49:29,970 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341176,341189] [2023-11-19 04:49:29,970 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341345,341358] [2023-11-19 04:49:29,971 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341512,341525] [2023-11-19 04:49:29,971 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_eda3b17e-114c-42c6-a8d4-9314e72a9553/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i[341680,341693] [2023-11-19 04:49:29,981 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:49:30,205 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:49:30,213 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:49:30,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30 WrapperNode [2023-11-19 04:49:30,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:49:30,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:30,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:49:30,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:49:30,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,537 INFO L138 Inliner]: procedures = 427, calls = 1840, calls flagged for inlining = 206, calls inlined = 187, statements flattened = 5026 [2023-11-19 04:49:30,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:49:30,538 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:49:30,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:49:30,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:49:30,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,876 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:49:30,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:49:30,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:49:30,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:49:30,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (1/1) ... [2023-11-19 04:49:30,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:49:30,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:49:30,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:49:30,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda3b17e-114c-42c6-a8d4-9314e72a9553/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:49:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-19 04:49:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-19 04:49:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:49:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:49:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:49:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:49:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2023-11-19 04:49:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2023-11-19 04:49:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:49:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:49:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:49:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:49:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2023-11-19 04:49:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rr_driver_exit_13_2 [2023-11-19 04:49:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rr_private [2023-11-19 04:49:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rr_private [2023-11-19 04:49:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:49:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:49:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:49:31,021 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:49:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:49:31,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:49:31,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:49:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:49:31,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:49:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:49:31,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:49:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:49:31,022 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-19 04:49:31,023 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-19 04:49:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:49:31,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:49:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure set_rraddr [2023-11-19 04:49:31,023 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rraddr [2023-11-19 04:49:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:49:31,023 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:49:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom_word [2023-11-19 04:49:31,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom_word [2023-11-19 04:49:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:49:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 04:49:31,024 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 04:49:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:49:31,025 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:49:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure rr_read_eeprom [2023-11-19 04:49:31,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_read_eeprom [2023-11-19 04:49:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:49:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:49:31,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:49:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:49:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:49:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:49:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:49:31,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:49:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:49:31,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:49:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:49:31,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:49:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:49:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:49:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:49:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:49:31,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:49:31,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:49:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:49:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:49:31,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:49:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:49:31,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:49:31,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:49:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:49:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:49:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:49:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:49:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:49:31,033 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 04:49:31,033 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 04:49:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:49:31,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:49:31,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rr_private [2023-11-19 04:49:31,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rr_private [2023-11-19 04:49:31,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 04:49:31,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 04:49:31,038 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:49:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:49:31,039 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:49:31,039 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:49:31,040 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 04:49:31,040 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 04:49:31,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:49:31,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:49:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:49:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:49:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:49:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:49:31,048 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 04:49:31,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 04:49:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:49:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:49:31,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:49:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:49:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:49:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:49:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:49:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:49:31,050 INFO L130 BoogieDeclarations]: Found specification of procedure rr_remove_one [2023-11-19 04:49:31,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_remove_one [2023-11-19 04:49:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:49:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:49:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:49:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:49:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:49:31,051 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:49:31,051 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 04:49:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 04:49:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure rr_init1 [2023-11-19 04:49:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_init1 [2023-11-19 04:49:31,052 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:49:31,052 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:49:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-19 04:49:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-19 04:49:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:49:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure rr_open [2023-11-19 04:49:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_open [2023-11-19 04:49:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:49:31,053 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 04:49:31,053 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 04:49:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:49:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 04:49:31,054 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 04:49:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:49:31,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:49:31,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:49:31,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:49:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:49:31,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:49:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:49:31,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:49:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:49:31,055 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:49:31,055 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:49:31,056 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:49:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:49:31,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:49:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:49:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:49:31,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:49:31,056 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_tx [2023-11-19 04:49:31,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_tx [2023-11-19 04:49:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure rr_close [2023-11-19 04:49:31,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_close [2023-11-19 04:49:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:49:31,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:49:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 04:49:31,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 04:49:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:49:31,058 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:49:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:49:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:49:31,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:49:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure rr_raz_rx [2023-11-19 04:49:31,059 INFO L138 BoogieDeclarations]: Found implementation of procedure rr_raz_rx [2023-11-19 04:49:31,857 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:49:31,863 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:49:32,949 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:49:35,786 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:49:35,944 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:49:37,655 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:49:37,656 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:49:37,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:37 BoogieIcfgContainer [2023-11-19 04:49:37,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:49:37,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:49:37,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:49:37,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:49:37,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:49:26" (1/3) ... [2023-11-19 04:49:37,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3861a026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:37, skipping insertion in model container [2023-11-19 04:49:37,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:49:30" (2/3) ... [2023-11-19 04:49:37,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3861a026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:49:37, skipping insertion in model container [2023-11-19 04:49:37,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:49:37" (3/3) ... [2023-11-19 04:49:37,684 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-hippi-rrunner.cil.i [2023-11-19 04:49:37,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:49:37,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:49:37,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:49:37,817 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;@4fa63153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:49:37,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:49:37,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 1404 states, 780 states have (on average 1.2743589743589743) internal successors, (994), 795 states have internal predecessors, (994), 550 states have call successors, (550), 72 states have call predecessors, (550), 71 states have return successors, (544), 543 states have call predecessors, (544), 544 states have call successors, (544) [2023-11-19 04:49:37,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 04:49:37,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:37,860 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:37,860 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)] === [2023-11-19 04:49:37,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:37,867 INFO L85 PathProgramCache]: Analyzing trace with hash -827816786, now seen corresponding path program 1 times [2023-11-19 04:49:37,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:37,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786934401] [2023-11-19 04:49:37,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:37,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-19 04:49:38,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:38,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786934401] [2023-11-19 04:49:38,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786934401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:38,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:38,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:38,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148855039] [2023-11-19 04:49:38,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:38,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:38,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:38,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:38,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:38,616 INFO L87 Difference]: Start difference. First operand has 1404 states, 780 states have (on average 1.2743589743589743) internal successors, (994), 795 states have internal predecessors, (994), 550 states have call successors, (550), 72 states have call predecessors, (550), 71 states have return successors, (544), 543 states have call predecessors, (544), 544 states have call successors, (544) 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 04:49:39,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:39,712 INFO L93 Difference]: Finished difference Result 4101 states and 6187 transitions. [2023-11-19 04:49:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:39,715 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2023-11-19 04:49:39,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:39,753 INFO L225 Difference]: With dead ends: 4101 [2023-11-19 04:49:39,753 INFO L226 Difference]: Without dead ends: 2702 [2023-11-19 04:49:39,769 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 [2023-11-19 04:49:39,772 INFO L413 NwaCegarLoop]: 1874 mSDtfsCounter, 1967 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:39,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 3704 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 04:49:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2023-11-19 04:49:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2698. [2023-11-19 04:49:40,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 1513 states have (on average 1.2663582286847324) internal successors, (1916), 1542 states have internal predecessors, (1916), 1044 states have call successors, (1044), 139 states have call predecessors, (1044), 138 states have return successors, (1040), 1038 states have call predecessors, (1040), 1040 states have call successors, (1040) [2023-11-19 04:49:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 4000 transitions. [2023-11-19 04:49:40,229 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 4000 transitions. Word has length 91 [2023-11-19 04:49:40,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:40,230 INFO L495 AbstractCegarLoop]: Abstraction has 2698 states and 4000 transitions. [2023-11-19 04:49:40,230 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 04:49:40,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 4000 transitions. [2023-11-19 04:49:40,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 04:49:40,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:40,237 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:40,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:49:40,237 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)] === [2023-11-19 04:49:40,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash -169949229, now seen corresponding path program 1 times [2023-11-19 04:49:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:40,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518302781] [2023-11-19 04:49:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:40,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:40,535 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-19 04:49:40,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:40,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518302781] [2023-11-19 04:49:40,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518302781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:40,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:40,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:40,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371768945] [2023-11-19 04:49:40,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:40,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:40,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:40,540 INFO L87 Difference]: Start difference. First operand 2698 states and 4000 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:49:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:41,547 INFO L93 Difference]: Finished difference Result 7538 states and 11156 transitions. [2023-11-19 04:49:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:41,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2023-11-19 04:49:41,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:41,592 INFO L225 Difference]: With dead ends: 7538 [2023-11-19 04:49:41,592 INFO L226 Difference]: Without dead ends: 4855 [2023-11-19 04:49:41,607 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 [2023-11-19 04:49:41,608 INFO L413 NwaCegarLoop]: 1880 mSDtfsCounter, 1658 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:41,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1658 Valid, 3685 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:49:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2023-11-19 04:49:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4823. [2023-11-19 04:49:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4823 states, 2686 states have (on average 1.2609828741623232) internal successors, (3387), 2742 states have internal predecessors, (3387), 1867 states have call successors, (1867), 274 states have call predecessors, (1867), 267 states have return successors, (1875), 1842 states have call predecessors, (1875), 1863 states have call successors, (1875) [2023-11-19 04:49:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4823 states to 4823 states and 7129 transitions. [2023-11-19 04:49:42,219 INFO L78 Accepts]: Start accepts. Automaton has 4823 states and 7129 transitions. Word has length 98 [2023-11-19 04:49:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:42,220 INFO L495 AbstractCegarLoop]: Abstraction has 4823 states and 7129 transitions. [2023-11-19 04:49:42,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:49:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4823 states and 7129 transitions. [2023-11-19 04:49:42,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 04:49:42,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:42,225 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:42,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:49:42,226 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)] === [2023-11-19 04:49:42,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:42,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1577410667, now seen corresponding path program 1 times [2023-11-19 04:49:42,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:42,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565895393] [2023-11-19 04:49:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:42,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:42,540 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-19 04:49:42,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:42,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565895393] [2023-11-19 04:49:42,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565895393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:42,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:42,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:42,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969449470] [2023-11-19 04:49:42,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:42,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:42,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:42,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:42,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:42,548 INFO L87 Difference]: Start difference. First operand 4823 states and 7129 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 04:49:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:43,770 INFO L93 Difference]: Finished difference Result 9607 states and 14184 transitions. [2023-11-19 04:49:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2023-11-19 04:49:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:43,818 INFO L225 Difference]: With dead ends: 9607 [2023-11-19 04:49:43,819 INFO L226 Difference]: Without dead ends: 4799 [2023-11-19 04:49:43,847 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 [2023-11-19 04:49:43,848 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 1408 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:43,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 3763 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 04:49:43,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4799 states. [2023-11-19 04:49:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4799 to 4769. [2023-11-19 04:49:44,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4769 states, 2645 states have (on average 1.257844990548204) internal successors, (3327), 2701 states have internal predecessors, (3327), 1831 states have call successors, (1831), 296 states have call predecessors, (1831), 290 states have return successors, (1833), 1805 states have call predecessors, (1833), 1827 states have call successors, (1833) [2023-11-19 04:49:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4769 states to 4769 states and 6991 transitions. [2023-11-19 04:49:44,613 INFO L78 Accepts]: Start accepts. Automaton has 4769 states and 6991 transitions. Word has length 105 [2023-11-19 04:49:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:44,614 INFO L495 AbstractCegarLoop]: Abstraction has 4769 states and 6991 transitions. [2023-11-19 04:49:44,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-19 04:49:44,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4769 states and 6991 transitions. [2023-11-19 04:49:44,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 04:49:44,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:44,627 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:44,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:49:44,628 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)] === [2023-11-19 04:49:44,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:44,628 INFO L85 PathProgramCache]: Analyzing trace with hash -702983465, now seen corresponding path program 1 times [2023-11-19 04:49:44,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:44,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151181354] [2023-11-19 04:49:44,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:44,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-19 04:49:44,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:44,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151181354] [2023-11-19 04:49:44,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151181354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:44,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:44,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196318108] [2023-11-19 04:49:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:44,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:44,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:44,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:44,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:44,944 INFO L87 Difference]: Start difference. First operand 4769 states and 6991 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:49:46,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:46,169 INFO L93 Difference]: Finished difference Result 12569 states and 18404 transitions. [2023-11-19 04:49:46,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:46,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 114 [2023-11-19 04:49:46,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:46,234 INFO L225 Difference]: With dead ends: 12569 [2023-11-19 04:49:46,234 INFO L226 Difference]: Without dead ends: 7815 [2023-11-19 04:49:46,258 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 [2023-11-19 04:49:46,262 INFO L413 NwaCegarLoop]: 1853 mSDtfsCounter, 1733 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:46,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 3657 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:49:46,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7815 states. [2023-11-19 04:49:46,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7815 to 7784. [2023-11-19 04:49:46,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7784 states, 4298 states have (on average 1.2484876686831083) internal successors, (5366), 4395 states have internal predecessors, (5366), 2997 states have call successors, (2997), 499 states have call predecessors, (2997), 486 states have return successors, (3005), 2940 states have call predecessors, (3005), 2993 states have call successors, (3005) [2023-11-19 04:49:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7784 states to 7784 states and 11368 transitions. [2023-11-19 04:49:46,994 INFO L78 Accepts]: Start accepts. Automaton has 7784 states and 11368 transitions. Word has length 114 [2023-11-19 04:49:46,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:46,995 INFO L495 AbstractCegarLoop]: Abstraction has 7784 states and 11368 transitions. [2023-11-19 04:49:46,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 04:49:46,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7784 states and 11368 transitions. [2023-11-19 04:49:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-19 04:49:46,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:46,998 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:46,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:49:46,998 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:49:46,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:46,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1915720533, now seen corresponding path program 1 times [2023-11-19 04:49:46,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:46,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735419857] [2023-11-19 04:49:47,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:47,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:47,307 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-19 04:49:47,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:47,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735419857] [2023-11-19 04:49:47,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735419857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:47,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:47,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:49:47,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405323842] [2023-11-19 04:49:47,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:47,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:49:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:49:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:49:47,310 INFO L87 Difference]: Start difference. First operand 7784 states and 11368 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:49:48,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:48,587 INFO L93 Difference]: Finished difference Result 21454 states and 31275 transitions. [2023-11-19 04:49:48,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:49:48,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 128 [2023-11-19 04:49:48,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:48,679 INFO L225 Difference]: With dead ends: 21454 [2023-11-19 04:49:48,679 INFO L226 Difference]: Without dead ends: 13685 [2023-11-19 04:49:48,719 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 [2023-11-19 04:49:48,720 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 1981 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:48,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 4373 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 04:49:48,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13685 states. [2023-11-19 04:49:49,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13685 to 13644. [2023-11-19 04:49:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13644 states, 7676 states have (on average 1.2550807712350183) internal successors, (9634), 7872 states have internal predecessors, (9634), 5105 states have call successors, (5105), 889 states have call predecessors, (5105), 860 states have return successors, (5129), 4975 states have call predecessors, (5129), 5101 states have call successors, (5129) [2023-11-19 04:49:49,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13644 states to 13644 states and 19868 transitions. [2023-11-19 04:49:49,934 INFO L78 Accepts]: Start accepts. Automaton has 13644 states and 19868 transitions. Word has length 128 [2023-11-19 04:49:49,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:49,935 INFO L495 AbstractCegarLoop]: Abstraction has 13644 states and 19868 transitions. [2023-11-19 04:49:49,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:49:49,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13644 states and 19868 transitions. [2023-11-19 04:49:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-19 04:49:49,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:49,939 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:49,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:49:49,939 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)] === [2023-11-19 04:49:49,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:49,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1677399681, now seen corresponding path program 1 times [2023-11-19 04:49:49,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612234166] [2023-11-19 04:49:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-11-19 04:49:50,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:50,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612234166] [2023-11-19 04:49:50,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612234166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:50,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:50,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:49:50,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544599005] [2023-11-19 04:49:50,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:50,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:50,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:50,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:50,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:50,379 INFO L87 Difference]: Start difference. First operand 13644 states and 19868 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, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 04:49:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:51,905 INFO L93 Difference]: Finished difference Result 13650 states and 19873 transitions. [2023-11-19 04:49:51,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:49:51,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2023-11-19 04:49:51,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:51,997 INFO L225 Difference]: With dead ends: 13650 [2023-11-19 04:49:51,997 INFO L226 Difference]: Without dead ends: 13648 [2023-11-19 04:49:52,008 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 [2023-11-19 04:49:52,010 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 2013 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 5512 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:52,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 5512 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 04:49:52,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13648 states. [2023-11-19 04:49:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13648 to 13648. [2023-11-19 04:49:53,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13648 states, 7679 states have (on average 1.2549811173329861) internal successors, (9637), 7875 states have internal predecessors, (9637), 5105 states have call successors, (5105), 890 states have call predecessors, (5105), 861 states have return successors, (5129), 4975 states have call predecessors, (5129), 5101 states have call successors, (5129) [2023-11-19 04:49:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13648 states to 13648 states and 19871 transitions. [2023-11-19 04:49:53,946 INFO L78 Accepts]: Start accepts. Automaton has 13648 states and 19871 transitions. Word has length 133 [2023-11-19 04:49:53,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:53,947 INFO L495 AbstractCegarLoop]: Abstraction has 13648 states and 19871 transitions. [2023-11-19 04:49:53,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 04:49:53,947 INFO L276 IsEmpty]: Start isEmpty. Operand 13648 states and 19871 transitions. [2023-11-19 04:49:53,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-19 04:49:53,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:53,953 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:53,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:49:53,954 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)] === [2023-11-19 04:49:53,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:53,955 INFO L85 PathProgramCache]: Analyzing trace with hash -499657016, now seen corresponding path program 1 times [2023-11-19 04:49:53,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848748054] [2023-11-19 04:49:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:53,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:54,561 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-19 04:49:54,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:54,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848748054] [2023-11-19 04:49:54,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848748054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:54,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:54,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:49:54,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490341158] [2023-11-19 04:49:54,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:54,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:54,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:54,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:54,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:54,564 INFO L87 Difference]: Start difference. First operand 13648 states and 19871 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:49:56,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:56,141 INFO L93 Difference]: Finished difference Result 13654 states and 19876 transitions. [2023-11-19 04:49:56,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:49:56,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2023-11-19 04:49:56,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:56,204 INFO L225 Difference]: With dead ends: 13654 [2023-11-19 04:49:56,205 INFO L226 Difference]: Without dead ends: 13652 [2023-11-19 04:49:56,211 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 [2023-11-19 04:49:56,212 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 2007 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:56,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 5515 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 04:49:56,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13652 states. [2023-11-19 04:49:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13652 to 13652. [2023-11-19 04:49:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13652 states, 7682 states have (on average 1.2548815412652954) internal successors, (9640), 7878 states have internal predecessors, (9640), 5105 states have call successors, (5105), 891 states have call predecessors, (5105), 862 states have return successors, (5129), 4975 states have call predecessors, (5129), 5101 states have call successors, (5129) [2023-11-19 04:49:57,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13652 states to 13652 states and 19874 transitions. [2023-11-19 04:49:57,591 INFO L78 Accepts]: Start accepts. Automaton has 13652 states and 19874 transitions. Word has length 142 [2023-11-19 04:49:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:49:57,591 INFO L495 AbstractCegarLoop]: Abstraction has 13652 states and 19874 transitions. [2023-11-19 04:49:57,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-19 04:49:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 13652 states and 19874 transitions. [2023-11-19 04:49:57,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-19 04:49:57,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:49:57,596 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:49:57,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 04:49:57,596 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)] === [2023-11-19 04:49:57,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:49:57,597 INFO L85 PathProgramCache]: Analyzing trace with hash -723963440, now seen corresponding path program 1 times [2023-11-19 04:49:57,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:49:57,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360428358] [2023-11-19 04:49:57,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:49:57,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:49:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:49:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-19 04:49:58,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:49:58,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360428358] [2023-11-19 04:49:58,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360428358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:49:58,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:49:58,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:49:58,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014518879] [2023-11-19 04:49:58,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:49:58,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:49:58,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:49:58,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:49:58,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:49:58,006 INFO L87 Difference]: Start difference. First operand 13652 states and 19874 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:49:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:49:59,544 INFO L93 Difference]: Finished difference Result 13658 states and 19879 transitions. [2023-11-19 04:49:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:49:59,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 146 [2023-11-19 04:49:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:49:59,598 INFO L225 Difference]: With dead ends: 13658 [2023-11-19 04:49:59,599 INFO L226 Difference]: Without dead ends: 13656 [2023-11-19 04:49:59,603 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 [2023-11-19 04:49:59,604 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 2007 mSDsluCounter, 3669 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2019 SdHoareTripleChecker+Valid, 5515 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:49:59,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2019 Valid, 5515 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 04:49:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13656 states. [2023-11-19 04:50:01,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 13656. [2023-11-19 04:50:01,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13656 states, 7685 states have (on average 1.2547820429407937) internal successors, (9643), 7881 states have internal predecessors, (9643), 5105 states have call successors, (5105), 892 states have call predecessors, (5105), 863 states have return successors, (5129), 4975 states have call predecessors, (5129), 5101 states have call successors, (5129) [2023-11-19 04:50:01,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13656 states to 13656 states and 19877 transitions. [2023-11-19 04:50:01,193 INFO L78 Accepts]: Start accepts. Automaton has 13656 states and 19877 transitions. Word has length 146 [2023-11-19 04:50:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:50:01,195 INFO L495 AbstractCegarLoop]: Abstraction has 13656 states and 19877 transitions. [2023-11-19 04:50:01,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-19 04:50:01,195 INFO L276 IsEmpty]: Start isEmpty. Operand 13656 states and 19877 transitions. [2023-11-19 04:50:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-19 04:50:01,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:01,201 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:01,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 04:50:01,202 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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)] === [2023-11-19 04:50:01,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:01,203 INFO L85 PathProgramCache]: Analyzing trace with hash 199576407, now seen corresponding path program 1 times [2023-11-19 04:50:01,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:01,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106122466] [2023-11-19 04:50:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:01,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:50:01,565 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2023-11-19 04:50:01,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:50:01,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106122466] [2023-11-19 04:50:01,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106122466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:50:01,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:50:01,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:50:01,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439636480] [2023-11-19 04:50:01,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:50:01,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:50:01,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:50:01,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:50:01,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:50:01,572 INFO L87 Difference]: Start difference. First operand 13656 states and 19877 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-19 04:50:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:50:04,816 INFO L93 Difference]: Finished difference Result 39998 states and 58275 transitions. [2023-11-19 04:50:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:50:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 146 [2023-11-19 04:50:04,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:50:04,953 INFO L225 Difference]: With dead ends: 39998 [2023-11-19 04:50:04,954 INFO L226 Difference]: Without dead ends: 26357 [2023-11-19 04:50:05,003 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 [2023-11-19 04:50:05,005 INFO L413 NwaCegarLoop]: 2254 mSDtfsCounter, 2021 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:50:05,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 4096 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 04:50:05,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26357 states.