./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 cf1a7837 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/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_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX --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 0.2.3-dev-cf1a783 [2023-11-12 00:13:36,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:13:36,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:13:36,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:13:36,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:13:36,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:13:36,554 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:13:36,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:13:36,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:13:36,557 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:13:36,558 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:13:36,560 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:13:36,560 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:13:36,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:13:36,566 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:13:36,567 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:13:36,568 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:13:36,569 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:13:36,569 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:13:36,570 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:13:36,570 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:13:36,571 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:13:36,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:13:36,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:13:36,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:13:36,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:13:36,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:13:36,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:13:36,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:13:36,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:13:36,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:13:36,578 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:13:36,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:13:36,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:36,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:13:36,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:13:36,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:13:36,580 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:13:36,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:13:36,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:13:36,581 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:13:36,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:13:36,582 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08a377ea5583d5b51d35b7880dbbb43c3783bcaabfa79c83938a2c0ac78e3f7a [2023-11-12 00:13:36,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:13:36,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:13:36,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:13:36,921 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:13:36,921 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:13:36,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-12 00:13:40,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:40,751 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:40,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-12 00:13:40,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/data/9aa5ac4e6/efb7a15a93dd48d9bd10412357feb687/FLAG84a2f092c [2023-11-12 00:13:40,825 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/data/9aa5ac4e6/efb7a15a93dd48d9bd10412357feb687 [2023-11-12 00:13:40,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:40,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:40,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:40,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:40,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:40,847 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:40" (1/1) ... [2023-11-12 00:13:40,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5b9014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:40, skipping insertion in model container [2023-11-12 00:13:40,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:40" (1/1) ... [2023-11-12 00:13:41,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:13:44,263 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,268 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,269 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,269 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:44,370 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:13:44,560 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] [2023-11-12 00:13:44,562 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] [2023-11-12 00:13:44,563 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5261] [2023-11-12 00:13:44,566 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] [2023-11-12 00:13:44,566 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] [2023-11-12 00:13:44,578 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] [2023-11-12 00:13:44,580 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] [2023-11-12 00:13:44,582 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] [2023-11-12 00:13:44,583 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] [2023-11-12 00:13:44,595 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] [2023-11-12 00:13:44,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5897] [2023-11-12 00:13:44,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6716] [2023-11-12 00:13:44,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6768] [2023-11-12 00:13:44,795 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,795 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,796 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,796 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_6498fac4-eb5e-4464-865b-e1b6d660b3df/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] [2023-11-12 00:13:44,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:45,070 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:13:45,078 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:13:45,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45 WrapperNode [2023-11-12 00:13:45,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:45,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:45,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:13:45,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:13:45,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,507 INFO L138 Inliner]: procedures = 451, calls = 2224, calls flagged for inlining = 222, calls inlined = 196, statements flattened = 5139 [2023-11-12 00:13:45,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:45,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:13:45,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:13:45,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:13:45,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:13:45,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:13:45,827 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:13:45,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:13:45,828 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (1/1) ... [2023-11-12 00:13:45,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:45,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:45,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:13:45,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6498fac4-eb5e-4464-865b-e1b6d660b3df/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:13:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-12 00:13:45,910 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-12 00:13:45,910 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:13:45,911 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:13:45,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:13:45,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:13:45,911 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_begin [2023-11-12 00:13:45,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_begin [2023-11-12 00:13:45,911 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:13:45,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:13:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:13:45,912 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:13:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:13:45,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:13:45,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:13:45,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:13:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:13:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:13:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:13:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:13:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-12 00:13:45,913 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-12 00:13:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2023-11-12 00:13:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2023-11-12 00:13:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:13:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:13:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-12 00:13:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-12 00:13:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:13:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:13:45,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:13:45,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:13:45,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:13:45,916 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:13:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:13:45,916 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:13:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:13:45,916 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:13:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:13:45,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:13:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:13:45,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:13:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:13:45,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:13:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:13:45,917 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:13:45,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:13:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:13:45,918 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:13:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:13:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:13:45,918 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:13:45,918 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 00:13:45,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 00:13:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:13:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:13:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:13:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:13:45,919 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:13:45,919 INFO L130 BoogieDeclarations]: Found specification of procedure epic_open [2023-11-12 00:13:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_open [2023-11-12 00:13:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:13:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-12 00:13:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-12 00:13:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:13:45,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:13:45,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:13:45,921 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:13:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 00:13:45,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 00:13:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:13:45,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:13:45,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:13:45,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:13:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:13:45,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:13:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-12 00:13:45,922 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-12 00:13:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure epic_restart [2023-11-12 00:13:45,922 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_restart [2023-11-12 00:13:45,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2023-11-12 00:13:45,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_epic_cleanup_14_2 [2023-11-12 00:13:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:13:45,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:13:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:13:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:13:45,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:13:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:13:45,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:13:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:13:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-12 00:13:45,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-12 00:13:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:13:45,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:13:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:13:45,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:13:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:13:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-12 00:13:45,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-12 00:13:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:13:45,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:13:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_epic_private [2023-11-12 00:13:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_epic_private [2023-11-12 00:13:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-12 00:13:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-12 00:13:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:13:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:13:45,926 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:13:45,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:13:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-12 00:13:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-12 00:13:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:13:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:13:45,927 INFO L130 BoogieDeclarations]: Found specification of procedure epic_remove_one [2023-11-12 00:13:45,927 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_remove_one [2023-11-12 00:13:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:13:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:13:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:13:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:13:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_napi_lock_of_epic_private [2023-11-12 00:13:45,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_napi_lock_of_epic_private [2023-11-12 00:13:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:13:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:13:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 00:13:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 00:13:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:13:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:13:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:13:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:13:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:13:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:13:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:13:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:13:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure epic_rx [2023-11-12 00:13:45,930 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_rx [2023-11-12 00:13:45,930 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_complete [2023-11-12 00:13:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_complete [2023-11-12 00:13:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 00:13:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 00:13:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_napi_lock_of_epic_private [2023-11-12 00:13:45,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_napi_lock_of_epic_private [2023-11-12 00:13:45,931 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:13:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:13:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:13:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:13:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:13:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:13:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:13:45,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:13:45,932 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:13:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:13:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:13:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2023-11-12 00:13:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2023-11-12 00:13:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure epic_resume [2023-11-12 00:13:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_resume [2023-11-12 00:13:45,933 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:13:45,933 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:13:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:13:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure epic_tx_timeout [2023-11-12 00:13:45,934 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_tx_timeout [2023-11-12 00:13:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:13:45,934 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:13:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:13:45,934 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:13:45,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:13:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:13:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:13:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-12 00:13:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-12 00:13:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:13:45,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:13:45,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:13:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:13:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-12 00:13:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-12 00:13:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:13:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:13:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:13:45,936 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:13:45,936 INFO L130 BoogieDeclarations]: Found specification of procedure epic_close [2023-11-12 00:13:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_close [2023-11-12 00:13:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:13:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:13:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:13:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:13:45,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:13:45,937 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:13:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:13:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_epic_private [2023-11-12 00:13:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_epic_private [2023-11-12 00:13:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:13:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:13:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:13:45,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:13:45,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:13:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:13:45,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:13:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure epic_pause [2023-11-12 00:13:45,939 INFO L138 BoogieDeclarations]: Found implementation of procedure epic_pause [2023-11-12 00:13:46,768 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:13:46,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:13:47,501 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:13:51,126 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:13:51,266 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:13:53,398 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:13:53,398 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:13:53,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:53 BoogieIcfgContainer [2023-11-12 00:13:53,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:13:53,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:13:53,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:13:53,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:13:53,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:40" (1/3) ... [2023-11-12 00:13:53,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe6f16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:53, skipping insertion in model container [2023-11-12 00:13:53,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:45" (2/3) ... [2023-11-12 00:13:53,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe6f16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:53, skipping insertion in model container [2023-11-12 00:13:53,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:53" (3/3) ... [2023-11-12 00:13:53,418 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-epic100.cil.i [2023-11-12 00:13:53,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:13:53,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:13:53,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:13:53,568 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;@25e1e804, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:13:53,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:13:53,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 1339 states, 773 states have (on average 1.2897800776196637) internal successors, (997), 798 states have internal predecessors, (997), 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) [2023-11-12 00:13:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-12 00:13:53,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:53,620 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] [2023-11-12 00:13:53,621 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)] === [2023-11-12 00:13:53,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:53,628 INFO L85 PathProgramCache]: Analyzing trace with hash -926955291, now seen corresponding path program 1 times [2023-11-12 00:13:53,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:53,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706131716] [2023-11-12 00:13:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:53,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:54,716 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:13:54,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:54,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706131716] [2023-11-12 00:13:54,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706131716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:54,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:54,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:13:54,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361271835] [2023-11-12 00:13:54,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:54,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:13:54,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:54,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:13:54,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:54,791 INFO L87 Difference]: Start difference. First operand has 1339 states, 773 states have (on average 1.2897800776196637) internal successors, (997), 798 states have internal predecessors, (997), 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) [2023-11-12 00:13:56,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:56,847 INFO L93 Difference]: Finished difference Result 3902 states and 5675 transitions. [2023-11-12 00:13:56,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:13:56,852 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 [2023-11-12 00:13:56,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:56,914 INFO L225 Difference]: With dead ends: 3902 [2023-11-12 00:13:56,915 INFO L226 Difference]: Without dead ends: 2572 [2023-11-12 00:13:56,937 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 [2023-11-12 00:13:56,940 INFO L413 NwaCegarLoop]: 1660 mSDtfsCounter, 1812 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:56,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 3273 Invalid, 573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-12 00:13:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2023-11-12 00:13:57,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2568. [2023-11-12 00:13:57,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 1498 states have (on average 1.2837116154873165) internal successors, (1923), 1547 states have internal predecessors, (1923), 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) [2023-11-12 00:13:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 3689 transitions. [2023-11-12 00:13:57,369 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 3689 transitions. Word has length 111 [2023-11-12 00:13:57,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:57,371 INFO L495 AbstractCegarLoop]: Abstraction has 2568 states and 3689 transitions. [2023-11-12 00:13:57,372 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) [2023-11-12 00:13:57,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 3689 transitions. [2023-11-12 00:13:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:13:57,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:57,382 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] [2023-11-12 00:13:57,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:13:57,383 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)] === [2023-11-12 00:13:57,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:57,384 INFO L85 PathProgramCache]: Analyzing trace with hash -583168308, now seen corresponding path program 1 times [2023-11-12 00:13:57,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:57,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839025846] [2023-11-12 00:13:57,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:57,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:57,870 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:13:57,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:57,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839025846] [2023-11-12 00:13:57,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839025846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:57,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:57,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:13:57,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351757629] [2023-11-12 00:13:57,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:57,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:13:57,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:57,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:13:57,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:13:57,882 INFO L87 Difference]: Start difference. First operand 2568 states and 3689 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) [2023-11-12 00:13:59,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:59,805 INFO L93 Difference]: Finished difference Result 7324 states and 10491 transitions. [2023-11-12 00:13:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:13:59,806 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 [2023-11-12 00:13:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:59,848 INFO L225 Difference]: With dead ends: 7324 [2023-11-12 00:13:59,848 INFO L226 Difference]: Without dead ends: 4775 [2023-11-12 00:13:59,863 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 [2023-11-12 00:13:59,864 INFO L413 NwaCegarLoop]: 1639 mSDtfsCounter, 1619 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:59,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 3220 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 00:13:59,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2023-11-12 00:14:00,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4745. [2023-11-12 00:14:00,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4745 states, 2770 states have (on average 1.2740072202166064) internal successors, (3529), 2866 states have internal predecessors, (3529), 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) [2023-11-12 00:14:00,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 6781 transitions. [2023-11-12 00:14:00,351 INFO L78 Accepts]: Start accepts. Automaton has 4745 states and 6781 transitions. Word has length 119 [2023-11-12 00:14:00,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:00,352 INFO L495 AbstractCegarLoop]: Abstraction has 4745 states and 6781 transitions. [2023-11-12 00:14:00,352 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) [2023-11-12 00:14:00,352 INFO L276 IsEmpty]: Start isEmpty. Operand 4745 states and 6781 transitions. [2023-11-12 00:14:00,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-12 00:14:00,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:00,362 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] [2023-11-12 00:14:00,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:14:00,363 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)] === [2023-11-12 00:14:00,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:00,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1133344625, now seen corresponding path program 1 times [2023-11-12 00:14:00,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155485430] [2023-11-12 00:14:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 00:14:00,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:00,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155485430] [2023-11-12 00:14:00,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155485430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:00,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:00,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:14:00,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258218465] [2023-11-12 00:14:00,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:00,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:00,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:00,826 INFO L87 Difference]: Start difference. First operand 4745 states and 6781 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) [2023-11-12 00:14:02,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:02,995 INFO L93 Difference]: Finished difference Result 13765 states and 19657 transitions. [2023-11-12 00:14:02,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:02,996 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 [2023-11-12 00:14:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:03,077 INFO L225 Difference]: With dead ends: 13765 [2023-11-12 00:14:03,078 INFO L226 Difference]: Without dead ends: 9039 [2023-11-12 00:14:03,100 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 [2023-11-12 00:14:03,105 INFO L413 NwaCegarLoop]: 1805 mSDtfsCounter, 1755 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:03,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1755 Valid, 3382 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:14:03,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9039 states. [2023-11-12 00:14:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9039 to 9005. [2023-11-12 00:14:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9005 states, 5268 states have (on average 1.2727790432801822) internal successors, (6705), 5452 states have internal predecessors, (6705), 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) [2023-11-12 00:14:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9005 states to 9005 states and 12849 transitions. [2023-11-12 00:14:03,877 INFO L78 Accepts]: Start accepts. Automaton has 9005 states and 12849 transitions. Word has length 125 [2023-11-12 00:14:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:03,879 INFO L495 AbstractCegarLoop]: Abstraction has 9005 states and 12849 transitions. [2023-11-12 00:14:03,881 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) [2023-11-12 00:14:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand 9005 states and 12849 transitions. [2023-11-12 00:14:03,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-12 00:14:03,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:03,888 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] [2023-11-12 00:14:03,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:14:03,889 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)] === [2023-11-12 00:14:03,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:03,890 INFO L85 PathProgramCache]: Analyzing trace with hash -792618146, now seen corresponding path program 1 times [2023-11-12 00:14:03,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:03,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057278041] [2023-11-12 00:14:03,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:03,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:04,651 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-11-12 00:14:04,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:04,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057278041] [2023-11-12 00:14:04,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057278041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:04,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:04,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:14:04,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204946394] [2023-11-12 00:14:04,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:04,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:14:04,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:04,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:14:04,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:14:04,657 INFO L87 Difference]: Start difference. First operand 9005 states and 12849 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) [2023-11-12 00:14:07,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:07,119 INFO L93 Difference]: Finished difference Result 9011 states and 12854 transitions. [2023-11-12 00:14:07,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:14:07,120 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 [2023-11-12 00:14:07,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:07,210 INFO L225 Difference]: With dead ends: 9011 [2023-11-12 00:14:07,210 INFO L226 Difference]: Without dead ends: 9009 [2023-11-12 00:14:07,215 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 [2023-11-12 00:14:07,219 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 1856 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:07,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 4872 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 00:14:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9009 states. [2023-11-12 00:14:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9009 to 9009. [2023-11-12 00:14:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9009 states, 5271 states have (on average 1.2726237905520774) internal successors, (6708), 5455 states have internal predecessors, (6708), 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) [2023-11-12 00:14:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9009 states to 9009 states and 12852 transitions. [2023-11-12 00:14:08,247 INFO L78 Accepts]: Start accepts. Automaton has 9009 states and 12852 transitions. Word has length 157 [2023-11-12 00:14:08,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:08,250 INFO L495 AbstractCegarLoop]: Abstraction has 9009 states and 12852 transitions. [2023-11-12 00:14:08,251 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) [2023-11-12 00:14:08,251 INFO L276 IsEmpty]: Start isEmpty. Operand 9009 states and 12852 transitions. [2023-11-12 00:14:08,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-12 00:14:08,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:08,259 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:08,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:14:08,259 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)] === [2023-11-12 00:14:08,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -127742508, now seen corresponding path program 1 times [2023-11-12 00:14:08,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:08,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143997864] [2023-11-12 00:14:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2023-11-12 00:14:08,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:08,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143997864] [2023-11-12 00:14:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143997864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:08,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:08,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:14:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386694162] [2023-11-12 00:14:08,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:08,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:14:08,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:08,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:14:08,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:14:08,965 INFO L87 Difference]: Start difference. First operand 9009 states and 12852 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) [2023-11-12 00:14:11,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:11,019 INFO L93 Difference]: Finished difference Result 9015 states and 12857 transitions. [2023-11-12 00:14:11,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:14:11,020 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 166 [2023-11-12 00:14:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:11,079 INFO L225 Difference]: With dead ends: 9015 [2023-11-12 00:14:11,079 INFO L226 Difference]: Without dead ends: 9013 [2023-11-12 00:14:11,085 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 [2023-11-12 00:14:11,085 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 4875 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 [2023-11-12 00:14:11,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1861 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-12 00:14:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9013 states. [2023-11-12 00:14:11,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9013 to 9013. [2023-11-12 00:14:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 5274 states have (on average 1.2724687144482367) internal successors, (6711), 5458 states have internal predecessors, (6711), 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) [2023-11-12 00:14:11,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 12855 transitions. [2023-11-12 00:14:11,829 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 12855 transitions. Word has length 166 [2023-11-12 00:14:11,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:11,830 INFO L495 AbstractCegarLoop]: Abstraction has 9013 states and 12855 transitions. [2023-11-12 00:14:11,831 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) [2023-11-12 00:14:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 12855 transitions. [2023-11-12 00:14:11,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-12 00:14:11,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:11,839 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:11,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:14:11,840 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)] === [2023-11-12 00:14:11,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:11,841 INFO L85 PathProgramCache]: Analyzing trace with hash -123269441, now seen corresponding path program 1 times [2023-11-12 00:14:11,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:11,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859000678] [2023-11-12 00:14:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:11,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:12,561 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-12 00:14:12,562 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:12,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859000678] [2023-11-12 00:14:12,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859000678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:12,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:12,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:14:12,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7918320] [2023-11-12 00:14:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:12,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:14:12,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:14:12,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:14:12,565 INFO L87 Difference]: Start difference. First operand 9013 states and 12855 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-12 00:14:14,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:14,722 INFO L93 Difference]: Finished difference Result 9019 states and 12860 transitions. [2023-11-12 00:14:14,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:14:14,723 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 170 [2023-11-12 00:14:14,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:14,776 INFO L225 Difference]: With dead ends: 9019 [2023-11-12 00:14:14,776 INFO L226 Difference]: Without dead ends: 9017 [2023-11-12 00:14:14,784 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 [2023-11-12 00:14:14,785 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 4875 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 [2023-11-12 00:14:14,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:14:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9017 states. [2023-11-12 00:14:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9017 to 9017. [2023-11-12 00:14:15,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9017 states, 5277 states have (on average 1.2723138146674247) internal successors, (6714), 5461 states have internal predecessors, (6714), 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) [2023-11-12 00:14:15,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9017 states to 9017 states and 12858 transitions. [2023-11-12 00:14:15,640 INFO L78 Accepts]: Start accepts. Automaton has 9017 states and 12858 transitions. Word has length 170 [2023-11-12 00:14:15,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:15,641 INFO L495 AbstractCegarLoop]: Abstraction has 9017 states and 12858 transitions. [2023-11-12 00:14:15,641 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, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-12 00:14:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 9017 states and 12858 transitions. [2023-11-12 00:14:15,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-12 00:14:15,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:15,649 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] [2023-11-12 00:14:15,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:14:15,650 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)] === [2023-11-12 00:14:15,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:15,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1639334484, now seen corresponding path program 1 times [2023-11-12 00:14:15,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:15,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095696050] [2023-11-12 00:14:15,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:15,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2023-11-12 00:14:16,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:16,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095696050] [2023-11-12 00:14:16,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095696050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:16,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:16,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:14:16,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498907203] [2023-11-12 00:14:16,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:16,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:14:16,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:16,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:14:16,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:14:16,244 INFO L87 Difference]: Start difference. First operand 9017 states and 12858 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) [2023-11-12 00:14:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:18,641 INFO L93 Difference]: Finished difference Result 9023 states and 12863 transitions. [2023-11-12 00:14:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:14:18,642 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 [2023-11-12 00:14:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:18,704 INFO L225 Difference]: With dead ends: 9023 [2023-11-12 00:14:18,704 INFO L226 Difference]: Without dead ends: 9021 [2023-11-12 00:14:18,711 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 [2023-11-12 00:14:18,712 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 1850 mSDsluCounter, 3243 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 4875 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 [2023-11-12 00:14:18,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 4875 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:14:18,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9021 states. [2023-11-12 00:14:19,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9021 to 9021. [2023-11-12 00:14:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 5280 states have (on average 1.272159090909091) internal successors, (6717), 5464 states have internal predecessors, (6717), 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) [2023-11-12 00:14:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12861 transitions. [2023-11-12 00:14:19,688 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12861 transitions. Word has length 176 [2023-11-12 00:14:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:19,689 INFO L495 AbstractCegarLoop]: Abstraction has 9021 states and 12861 transitions. [2023-11-12 00:14:19,689 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) [2023-11-12 00:14:19,690 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12861 transitions. [2023-11-12 00:14:19,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-12 00:14:19,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:19,698 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:19,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:14:19,699 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)] === [2023-11-12 00:14:19,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1048895106, now seen corresponding path program 1 times [2023-11-12 00:14:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:19,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116497530] [2023-11-12 00:14:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:19,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat