./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:10:58,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:10:58,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:10:58,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:10:58,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:10:58,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:10:58,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:10:58,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:10:58,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:10:58,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:10:58,582 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:10:58,583 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:10:58,584 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:10:58,585 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:10:58,586 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:10:58,586 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:10:58,587 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:10:58,587 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:10:58,588 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:10:58,588 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:10:58,589 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:10:58,590 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:10:58,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:10:58,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:10:58,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:10:58,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:10:58,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:10:58,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:10:58,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:10:58,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:10:58,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:10:58,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:10:58,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:10:58,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:10:58,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:58,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:10:58,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:10:58,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:10:58,598 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:10:58,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:10:58,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:10:58,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:10:58,600 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:10:58,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:10:58,601 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_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2023-11-25 00:10:58,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:10:58,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:10:58,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:10:58,960 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:10:58,960 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:10:58,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-25 00:11:02,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:11:02,818 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:11:02,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-25 00:11:02,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/data/49aec03ab/1a2e8ff73f30464d996171b6cb963a3f/FLAG5c9ad75e1 [2023-11-25 00:11:02,908 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/data/49aec03ab/1a2e8ff73f30464d996171b6cb963a3f [2023-11-25 00:11:02,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:11:02,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:11:02,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:11:02,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:11:02,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:11:02,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:11:02" (1/1) ... [2023-11-25 00:11:02,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373e3875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:02, skipping insertion in model container [2023-11-25 00:11:02,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:11:02" (1/1) ... [2023-11-25 00:11:03,109 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:11:06,349 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2023-11-25 00:11:06,355 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2023-11-25 00:11:06,356 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2023-11-25 00:11:06,357 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2023-11-25 00:11:06,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:11:06,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:11:06,607 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"); [5247] [2023-11-25 00:11:06,610 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)); [5254] [2023-11-25 00:11:06,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5261] [2023-11-25 00:11:06,614 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)); [5305-5306] [2023-11-25 00:11:06,614 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"); [5311-5313] [2023-11-25 00:11:06,626 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)); [5517-5518] [2023-11-25 00:11:06,629 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)); [5551-5552] [2023-11-25 00:11:06,630 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)); [5588-5589] [2023-11-25 00:11:06,632 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)); [5625-5626] [2023-11-25 00:11:06,641 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [5890-5891] [2023-11-25 00:11:06,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5897] [2023-11-25 00:11:06,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6716] [2023-11-25 00:11:06,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6768] [2023-11-25 00:11:06,957 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[331922,331935] [2023-11-25 00:11:06,957 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332091,332104] [2023-11-25 00:11:06,958 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332258,332271] [2023-11-25 00:11:06,959 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_a8f5888e-fa7c-408d-9718-abac07b55f75/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i[332426,332439] [2023-11-25 00:11:06,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:11:07,240 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:11:07,249 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:11:07,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07 WrapperNode [2023-11-25 00:11:07,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:11:07,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:11:07,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:11:07,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:11:07,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,658 INFO L138 Inliner]: procedures = 451, calls = 2224, calls flagged for inlining = 222, calls inlined = 196, statements flattened = 5203 [2023-11-25 00:11:07,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:11:07,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:11:07,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:11:07,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:11:07,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:07,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:08,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:08,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:11:08,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:11:08,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:11:08,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:11:08,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (1/1) ... [2023-11-25 00:11:08,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:11:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:11:08,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:11:08,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8f5888e-fa7c-408d-9718-abac07b55f75/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:11:08,151 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-25 00:11:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-25 00:11:08,152 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-25 00:11:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-25 00:11:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:11:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:11:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2023-11-25 00:11:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2023-11-25 00:11:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-25 00:11:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-25 00:11:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:11:08,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:11:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:11:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:11:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:11:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:11:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-25 00:11:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-25 00:11:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-25 00:11:08,155 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-25 00:11:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-25 00:11:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-25 00:11:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2023-11-25 00:11:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2023-11-25 00:11:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-25 00:11:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-25 00:11:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-25 00:11:08,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-25 00:11:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-25 00:11:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-25 00:11:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-25 00:11:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-25 00:11:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-25 00:11:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-25 00:11:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-25 00:11:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:11:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:11:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-25 00:11:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-25 00:11:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-25 00:11:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-25 00:11:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-25 00:11:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-25 00:11:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:11:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:11:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-25 00:11:08,158 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-25 00:11:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-25 00:11:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-25 00:11:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:11:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:11:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:11:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-25 00:11:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-25 00:11:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:11:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-25 00:11:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-25 00:11:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-25 00:11:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-25 00:11:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:11:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:11:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:11:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-25 00:11:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-25 00:11:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2023-11-25 00:11:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2023-11-25 00:11:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:11:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-25 00:11:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-25 00:11:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-25 00:11:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-25 00:11:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:11:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:11:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-25 00:11:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-25 00:11:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:11:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:11:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-25 00:11:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-25 00:11:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-25 00:11:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-25 00:11:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-25 00:11:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-25 00:11:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2023-11-25 00:11:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2023-11-25 00:11:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2023-11-25 00:11:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2023-11-25 00:11:08,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:11:08,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:11:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:11:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:11:08,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:11:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:11:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:11:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:11:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-25 00:11:08,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-25 00:11:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:11:08,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:11:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-25 00:11:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-25 00:11:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:11:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-25 00:11:08,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-25 00:11:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:11:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:11:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2023-11-25 00:11:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2023-11-25 00:11:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-25 00:11:08,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-25 00:11:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-25 00:11:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-25 00:11:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-25 00:11:08,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-25 00:11:08,169 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-25 00:11:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-25 00:11:08,170 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:11:08,170 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:11:08,171 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2023-11-25 00:11:08,171 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2023-11-25 00:11:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-25 00:11:08,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-25 00:11:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:11:08,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:11:08,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2023-11-25 00:11:08,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2023-11-25 00:11:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-25 00:11:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-25 00:11:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-25 00:11:08,179 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-25 00:11:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:11:08,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:11:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:11:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:11:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:11:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:11:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:11:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:11:08,188 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2023-11-25 00:11:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2023-11-25 00:11:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2023-11-25 00:11:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2023-11-25 00:11:08,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-25 00:11:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-25 00:11:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2023-11-25 00:11:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2023-11-25 00:11:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-25 00:11:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-25 00:11:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:11:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:11:08,190 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:11:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:11:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-25 00:11:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-25 00:11:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-25 00:11:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-25 00:11:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:11:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2023-11-25 00:11:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2023-11-25 00:11:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2023-11-25 00:11:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2023-11-25 00:11:08,192 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-25 00:11:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-25 00:11:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:11:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2023-11-25 00:11:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2023-11-25 00:11:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-25 00:11:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-25 00:11:08,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:11:08,194 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:11:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:11:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-25 00:11:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-25 00:11:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-25 00:11:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-25 00:11:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:11:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:11:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:11:08,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:11:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-25 00:11:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-25 00:11:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:11:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:11:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:11:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:11:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2023-11-25 00:11:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2023-11-25 00:11:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-25 00:11:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-25 00:11:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:11:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:11:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:11:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-25 00:11:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-25 00:11:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2023-11-25 00:11:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2023-11-25 00:11:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:11:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:11:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-25 00:11:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-25 00:11:08,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:11:08,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:11:08,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:11:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2023-11-25 00:11:08,202 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2023-11-25 00:11:09,196 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:11:09,202 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:11:09,880 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:11:14,221 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:11:14,404 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:11:16,567 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:11:16,568 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:11:16,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:11:16 BoogieIcfgContainer [2023-11-25 00:11:16,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:11:16,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:11:16,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:11:16,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:11:16,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:11:02" (1/3) ... [2023-11-25 00:11:16,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56137444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:11:16, skipping insertion in model container [2023-11-25 00:11:16,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:11:07" (2/3) ... [2023-11-25 00:11:16,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56137444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:11:16, skipping insertion in model container [2023-11-25 00:11:16,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:11:16" (3/3) ... [2023-11-25 00:11:16,587 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-25 00:11:16,609 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:11:16,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:11:16,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:11:16,734 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;@5f0cc9a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:11:16,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:11:16,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 1342 states, 776 states have (on average 1.288659793814433) internal successors, (1000), 799 states have internal predecessors, (1000), 470 states have call successors, (470), 94 states have call predecessors, (470), 93 states have return successors, (464), 459 states have call predecessors, (464), 464 states have call successors, (464) [2023-11-25 00:11:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-25 00:11:16,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:16,786 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:16,787 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:11:16,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:16,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1843001170, now seen corresponding path program 1 times [2023-11-25 00:11:16,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:16,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267938619] [2023-11-25 00:11:16,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:16,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-25 00:11:17,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:17,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267938619] [2023-11-25 00:11:17,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267938619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:17,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:17,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:17,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056691844] [2023-11-25 00:11:17,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:17,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:17,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:17,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:17,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:17,939 INFO L87 Difference]: Start difference. First operand has 1342 states, 776 states have (on average 1.288659793814433) internal successors, (1000), 799 states have internal predecessors, (1000), 470 states have call successors, (470), 94 states have call predecessors, (470), 93 states have return successors, (464), 459 states have call predecessors, (464), 464 states have call successors, (464) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-25 00:11:19,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:19,878 INFO L93 Difference]: Finished difference Result 3911 states and 5684 transitions. [2023-11-25 00:11:19,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:11:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 111 [2023-11-25 00:11:19,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:19,931 INFO L225 Difference]: With dead ends: 3911 [2023-11-25 00:11:19,931 INFO L226 Difference]: Without dead ends: 2578 [2023-11-25 00:11:19,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:19,949 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 1815 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:19,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3279 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-25 00:11:19,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2578 states. [2023-11-25 00:11:20,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2578 to 2574. [2023-11-25 00:11:20,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2574 states, 1504 states have (on average 1.2825797872340425) internal successors, (1929), 1549 states have internal predecessors, (1929), 885 states have call successors, (885), 183 states have call predecessors, (885), 182 states have return successors, (881), 871 states have call predecessors, (881), 881 states have call successors, (881) [2023-11-25 00:11:20,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3695 transitions. [2023-11-25 00:11:20,283 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3695 transitions. Word has length 111 [2023-11-25 00:11:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:20,286 INFO L495 AbstractCegarLoop]: Abstraction has 2574 states and 3695 transitions. [2023-11-25 00:11:20,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-25 00:11:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3695 transitions. [2023-11-25 00:11:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-25 00:11:20,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:20,296 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:20,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:11:20,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:11:20,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:20,297 INFO L85 PathProgramCache]: Analyzing trace with hash -823827845, now seen corresponding path program 1 times [2023-11-25 00:11:20,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:20,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801863546] [2023-11-25 00:11:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:20,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-25 00:11:20,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801863546] [2023-11-25 00:11:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801863546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:20,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:20,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:20,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144692755] [2023-11-25 00:11:20,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:20,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:20,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:20,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:20,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:20,830 INFO L87 Difference]: Start difference. First operand 2574 states and 3695 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-25 00:11:22,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:22,738 INFO L93 Difference]: Finished difference Result 7342 states and 10509 transitions. [2023-11-25 00:11:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:11:22,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2023-11-25 00:11:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:22,784 INFO L225 Difference]: With dead ends: 7342 [2023-11-25 00:11:22,784 INFO L226 Difference]: Without dead ends: 4787 [2023-11-25 00:11:22,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:22,801 INFO L413 NwaCegarLoop]: 1642 mSDtfsCounter, 1622 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1622 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:22,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1622 Valid, 3226 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-25 00:11:22,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4787 states. [2023-11-25 00:11:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4787 to 4757. [2023-11-25 00:11:23,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4757 states, 2782 states have (on average 1.2728253055355858) internal successors, (3541), 2870 states have internal predecessors, (3541), 1627 states have call successors, (1627), 348 states have call predecessors, (1627), 345 states have return successors, (1625), 1594 states have call predecessors, (1625), 1623 states have call successors, (1625) [2023-11-25 00:11:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6793 transitions. [2023-11-25 00:11:23,263 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6793 transitions. Word has length 119 [2023-11-25 00:11:23,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:23,264 INFO L495 AbstractCegarLoop]: Abstraction has 4757 states and 6793 transitions. [2023-11-25 00:11:23,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-25 00:11:23,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6793 transitions. [2023-11-25 00:11:23,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-25 00:11:23,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:23,268 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:23,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:11:23,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:11:23,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:23,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2000093226, now seen corresponding path program 1 times [2023-11-25 00:11:23,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:23,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747911563] [2023-11-25 00:11:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:23,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:23,774 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-25 00:11:23,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:23,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747911563] [2023-11-25 00:11:23,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747911563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:23,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:23,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:11:23,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117869894] [2023-11-25 00:11:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:23,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:11:23,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:23,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:11:23,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:23,779 INFO L87 Difference]: Start difference. First operand 4757 states and 6793 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-25 00:11:26,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:26,113 INFO L93 Difference]: Finished difference Result 13801 states and 19693 transitions. [2023-11-25 00:11:26,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:11:26,114 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2023-11-25 00:11:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:26,207 INFO L225 Difference]: With dead ends: 13801 [2023-11-25 00:11:26,208 INFO L226 Difference]: Without dead ends: 9063 [2023-11-25 00:11:26,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:11:26,243 INFO L413 NwaCegarLoop]: 1808 mSDtfsCounter, 1758 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:26,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 3388 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-25 00:11:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9063 states. [2023-11-25 00:11:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9063 to 9029. [2023-11-25 00:11:27,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9029 states, 5292 states have (on average 1.2715419501133787) internal successors, (6729), 5460 states have internal predecessors, (6729), 3067 states have call successors, (3067), 678 states have call predecessors, (3067), 667 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-25 00:11:27,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9029 states to 9029 states and 12873 transitions. [2023-11-25 00:11:27,126 INFO L78 Accepts]: Start accepts. Automaton has 9029 states and 12873 transitions. Word has length 125 [2023-11-25 00:11:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:27,128 INFO L495 AbstractCegarLoop]: Abstraction has 9029 states and 12873 transitions. [2023-11-25 00:11:27,129 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-25 00:11:27,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9029 states and 12873 transitions. [2023-11-25 00:11:27,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-25 00:11:27,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:27,140 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:27,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:11:27,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:11:27,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:27,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1483338863, now seen corresponding path program 1 times [2023-11-25 00:11:27,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:27,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227828281] [2023-11-25 00:11:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:27,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:27,899 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-11-25 00:11:27,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:27,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227828281] [2023-11-25 00:11:27,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227828281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:27,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:27,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:11:27,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40259938] [2023-11-25 00:11:27,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:27,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:11:27,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:11:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:27,904 INFO L87 Difference]: Start difference. First operand 9029 states and 12873 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-11-25 00:11:29,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:29,916 INFO L93 Difference]: Finished difference Result 9035 states and 12878 transitions. [2023-11-25 00:11:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:11:29,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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 157 [2023-11-25 00:11:29,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:30,017 INFO L225 Difference]: With dead ends: 9035 [2023-11-25 00:11:30,018 INFO L226 Difference]: Without dead ends: 9033 [2023-11-25 00:11:30,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:11:30,031 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1859 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:30,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 4881 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-25 00:11:30,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9033 states. [2023-11-25 00:11:30,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9033 to 9033. [2023-11-25 00:11:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9033 states, 5295 states have (on average 1.271388101983003) internal successors, (6732), 5463 states have internal predecessors, (6732), 3067 states have call successors, (3067), 679 states have call predecessors, (3067), 668 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-25 00:11:30,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9033 states to 9033 states and 12876 transitions. [2023-11-25 00:11:30,862 INFO L78 Accepts]: Start accepts. Automaton has 9033 states and 12876 transitions. Word has length 157 [2023-11-25 00:11:30,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:30,864 INFO L495 AbstractCegarLoop]: Abstraction has 9033 states and 12876 transitions. [2023-11-25 00:11:30,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 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) [2023-11-25 00:11:30,865 INFO L276 IsEmpty]: Start isEmpty. Operand 9033 states and 12876 transitions. [2023-11-25 00:11:30,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-25 00:11:30,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:30,871 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:30,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:11:30,872 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:11:30,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:30,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2104434381, now seen corresponding path program 1 times [2023-11-25 00:11:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:30,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251639612] [2023-11-25 00:11:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:30,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-25 00:11:31,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:31,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251639612] [2023-11-25 00:11:31,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251639612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:31,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:31,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:11:31,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486508036] [2023-11-25 00:11:31,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:31,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:11:31,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:31,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:11:31,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:31,582 INFO L87 Difference]: Start difference. First operand 9033 states and 12876 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-25 00:11:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:33,727 INFO L93 Difference]: Finished difference Result 9039 states and 12881 transitions. [2023-11-25 00:11:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:11:33,727 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 165 [2023-11-25 00:11:33,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:33,799 INFO L225 Difference]: With dead ends: 9039 [2023-11-25 00:11:33,800 INFO L226 Difference]: Without dead ends: 9037 [2023-11-25 00:11:33,807 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 [2023-11-25 00:11:33,808 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 1853 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:33,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 4884 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-25 00:11:33,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9037 states. [2023-11-25 00:11:34,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9037 to 9037. [2023-11-25 00:11:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9037 states, 5298 states have (on average 1.2712344280860701) internal successors, (6735), 5466 states have internal predecessors, (6735), 3067 states have call successors, (3067), 680 states have call predecessors, (3067), 669 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-25 00:11:34,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9037 states to 9037 states and 12879 transitions. [2023-11-25 00:11:34,666 INFO L78 Accepts]: Start accepts. Automaton has 9037 states and 12879 transitions. Word has length 165 [2023-11-25 00:11:34,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:34,667 INFO L495 AbstractCegarLoop]: Abstraction has 9037 states and 12879 transitions. [2023-11-25 00:11:34,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-25 00:11:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9037 states and 12879 transitions. [2023-11-25 00:11:34,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-25 00:11:34,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:34,677 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 3, 2, 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] [2023-11-25 00:11:34,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:11:34,678 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:11:34,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:34,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2142365809, now seen corresponding path program 1 times [2023-11-25 00:11:34,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:34,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434257480] [2023-11-25 00:11:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:34,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-11-25 00:11:35,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434257480] [2023-11-25 00:11:35,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434257480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:35,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:35,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:11:35,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90895806] [2023-11-25 00:11:35,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:35,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:11:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:11:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:35,480 INFO L87 Difference]: Start difference. First operand 9037 states and 12879 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-25 00:11:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:37,555 INFO L93 Difference]: Finished difference Result 9043 states and 12884 transitions. [2023-11-25 00:11:37,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:11:37,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 167 [2023-11-25 00:11:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:37,614 INFO L225 Difference]: With dead ends: 9043 [2023-11-25 00:11:37,614 INFO L226 Difference]: Without dead ends: 9041 [2023-11-25 00:11:37,623 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 [2023-11-25 00:11:37,624 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 1854 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:37,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 4884 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-25 00:11:37,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9041 states. [2023-11-25 00:11:38,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9041 to 9041. [2023-11-25 00:11:38,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9041 states, 5301 states have (on average 1.2710809281267685) internal successors, (6738), 5469 states have internal predecessors, (6738), 3067 states have call successors, (3067), 681 states have call predecessors, (3067), 670 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-25 00:11:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9041 states to 9041 states and 12882 transitions. [2023-11-25 00:11:38,500 INFO L78 Accepts]: Start accepts. Automaton has 9041 states and 12882 transitions. Word has length 167 [2023-11-25 00:11:38,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:38,501 INFO L495 AbstractCegarLoop]: Abstraction has 9041 states and 12882 transitions. [2023-11-25 00:11:38,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-25 00:11:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 9041 states and 12882 transitions. [2023-11-25 00:11:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-25 00:11:38,509 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:38,509 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:38,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-25 00:11:38,510 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)] === [2023-11-25 00:11:38,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -440303758, now seen corresponding path program 1 times [2023-11-25 00:11:38,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907130423] [2023-11-25 00:11:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:39,116 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2023-11-25 00:11:39,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:39,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907130423] [2023-11-25 00:11:39,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907130423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:39,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:39,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:11:39,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456744887] [2023-11-25 00:11:39,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:39,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:11:39,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:39,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:11:39,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:39,119 INFO L87 Difference]: Start difference. First operand 9041 states and 12882 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-25 00:11:41,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:41,503 INFO L93 Difference]: Finished difference Result 9047 states and 12887 transitions. [2023-11-25 00:11:41,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:11:41,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 176 [2023-11-25 00:11:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:41,552 INFO L225 Difference]: With dead ends: 9047 [2023-11-25 00:11:41,552 INFO L226 Difference]: Without dead ends: 9045 [2023-11-25 00:11:41,559 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 [2023-11-25 00:11:41,560 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 1853 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:41,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 4884 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-25 00:11:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9045 states. [2023-11-25 00:11:42,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9045 to 9045. [2023-11-25 00:11:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 5304 states have (on average 1.2709276018099547) internal successors, (6741), 5472 states have internal predecessors, (6741), 3067 states have call successors, (3067), 682 states have call predecessors, (3067), 671 states have return successors, (3077), 2986 states have call predecessors, (3077), 3063 states have call successors, (3077) [2023-11-25 00:11:42,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 12885 transitions. [2023-11-25 00:11:42,416 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 12885 transitions. Word has length 176 [2023-11-25 00:11:42,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:42,417 INFO L495 AbstractCegarLoop]: Abstraction has 9045 states and 12885 transitions. [2023-11-25 00:11:42,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-25 00:11:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 12885 transitions. [2023-11-25 00:11:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-11-25 00:11:42,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:42,427 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:42,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:11:42,428 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)] === [2023-11-25 00:11:42,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:42,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1371948068, now seen corresponding path program 1 times [2023-11-25 00:11:42,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:42,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865805095] [2023-11-25 00:11:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:42,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat