./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-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:14,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:14,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:14:14,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:14,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:14,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:14,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:14,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:14,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:14,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:14,484 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:14,485 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:14,485 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:14,487 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:14:14,487 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:14,488 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:14,488 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:14:14,489 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:14:14,489 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:14,489 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:14:14,490 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:14:14,490 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:14:14,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:14,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:14,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:14:14,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:14,493 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:14,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:14,494 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:14,495 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:14,496 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:14,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:14,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:14,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:14,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:14,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:14,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:14,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:14,498 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:14:14,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:14:14,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:14,500 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:14,500 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:14,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:14,501 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2023-11-23 21:14:14,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:14,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:14,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:14,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:14,886 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:14,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-23 21:14:18,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:18,689 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:18,691 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-23 21:14:18,764 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/data/113a424bf/d3f19016a0804fbd8bd805d121a21a3a/FLAGf3fa24bf7 [2023-11-23 21:14:18,783 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/data/113a424bf/d3f19016a0804fbd8bd805d121a21a3a [2023-11-23 21:14:18,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:18,791 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:18,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:18,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:18,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:18,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:18" (1/1) ... [2023-11-23 21:14:18,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269dd260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:18, skipping insertion in model container [2023-11-23 21:14:18,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:18" (1/1) ... [2023-11-23 21:14:19,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:22,060 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-23 21:14:22,070 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-23 21:14:22,071 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-23 21:14:22,072 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-23 21:14:22,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:22,158 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:22,332 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"); [5240] [2023-11-23 21:14:22,335 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)); [5247] [2023-11-23 21:14:22,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2023-11-23 21:14:22,337 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)); [5292-5293] [2023-11-23 21:14:22,338 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"); [5298-5300] [2023-11-23 21:14:22,345 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)); [5478-5479] [2023-11-23 21:14:22,347 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)); [5512-5513] [2023-11-23 21:14:22,349 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)); [5549-5550] [2023-11-23 21:14:22,351 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)); [5586-5587] [2023-11-23 21:14:22,565 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-23 21:14:22,566 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-23 21:14:22,567 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-23 21:14:22,567 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_de51da1b-b702-4b90-a8ec-b1acf98e60a0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-23 21:14:22,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:22,776 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:22,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22 WrapperNode [2023-11-23 21:14:22,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:22,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:22,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:22,779 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:22,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:22,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,187 INFO L138 Inliner]: procedures = 423, calls = 1900, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 5630 [2023-11-23 21:14:23,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:23,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:23,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:23,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:23,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,520 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,586 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:23,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:23,639 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:23,639 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:23,640 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (1/1) ... [2023-11-23 21:14:23,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:23,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:23,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:23,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de51da1b-b702-4b90-a8ec-b1acf98e60a0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:14:23,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:14:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:14:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:14:23,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:14:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:14:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:14:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:14:23,724 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:14:23,724 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:14:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 21:14:23,726 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 21:14:23,726 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 21:14:23,728 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 21:14:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2023-11-23 21:14:23,729 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2023-11-23 21:14:23,729 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:14:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:14:23,730 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-23 21:14:23,730 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-23 21:14:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:14:23,731 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:14:23,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:14:23,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:14:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2023-11-23 21:14:23,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2023-11-23 21:14:23,732 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:14:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:14:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:14:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:14:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:14:23,733 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:14:23,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:14:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:14:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:14:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:14:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2023-11-23 21:14:23,734 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2023-11-23 21:14:23,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:14:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:14:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:14:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-23 21:14:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-23 21:14:23,735 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:14:23,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:14:23,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:14:23,736 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:14:23,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:14:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:14:23,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:14:23,738 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:14:23,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:14:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:14:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:14:23,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:14:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:23,739 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:14:23,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:14:23,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:14:23,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:14:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:14:23,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:14:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:14:23,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:14:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:14:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:14:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:14:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:14:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:14:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:14:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:14:23,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:14:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:14:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:14:23,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:14:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:14:23,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:14:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2023-11-23 21:14:23,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2023-11-23 21:14:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-23 21:14:23,745 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-23 21:14:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:14:23,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:14:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:14:23,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:14:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:14:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-23 21:14:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-23 21:14:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:14:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:14:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:14:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:14:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2023-11-23 21:14:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2023-11-23 21:14:23,748 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-23 21:14:23,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-23 21:14:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:14:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:14:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:14:23,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:14:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:14:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:14:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:14:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:14:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:14:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:14:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:14:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:14:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:14:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:14:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:14:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:14:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:14:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:14:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2023-11-23 21:14:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2023-11-23 21:14:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:14:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:14:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:14:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:14:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-23 21:14:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-23 21:14:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:14:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:14:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-23 21:14:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-23 21:14:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:14:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:14:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:14:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:14:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:14:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-23 21:14:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-23 21:14:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2023-11-23 21:14:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2023-11-23 21:14:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:14:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:14:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:14:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-23 21:14:23,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-23 21:14:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:14:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:14:23,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:14:23,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:14:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:14:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:14:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:14:23,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:14:23,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:14:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-23 21:14:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-23 21:14:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:14:23,775 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:14:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:14:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:14:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2023-11-23 21:14:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2023-11-23 21:14:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2023-11-23 21:14:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2023-11-23 21:14:23,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-23 21:14:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-23 21:14:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2023-11-23 21:14:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2023-11-23 21:14:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:14:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:14:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-23 21:14:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-23 21:14:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-23 21:14:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-23 21:14:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:14:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:14:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2023-11-23 21:14:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2023-11-23 21:14:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:14:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:14:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:14:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:14:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:14:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:14:24,641 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:24,646 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:24,755 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:14:28,930 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:14:29,045 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:32,944 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:32,944 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 21:14:32,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:32 BoogieIcfgContainer [2023-11-23 21:14:32,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:32,950 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:32,950 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:32,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:32,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:18" (1/3) ... [2023-11-23 21:14:32,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b354836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:32, skipping insertion in model container [2023-11-23 21:14:32,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:22" (2/3) ... [2023-11-23 21:14:32,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b354836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:32, skipping insertion in model container [2023-11-23 21:14:32,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:32" (3/3) ... [2023-11-23 21:14:32,959 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-23 21:14:32,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:32,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:14:33,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:33,070 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;@678e2b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:33,071 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:14:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 1486 states, 875 states have (on average 1.2765714285714285) internal successors, (1117), 906 states have internal predecessors, (1117), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) [2023-11-23 21:14:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-23 21:14:33,103 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:33,103 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] [2023-11-23 21:14:33,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:14:33,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:33,109 INFO L85 PathProgramCache]: Analyzing trace with hash 79319435, now seen corresponding path program 1 times [2023-11-23 21:14:33,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:33,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155034066] [2023-11-23 21:14:33,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:33,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:34,085 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-23 21:14:34,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:34,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155034066] [2023-11-23 21:14:34,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155034066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:34,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:34,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:34,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669022248] [2023-11-23 21:14:34,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:34,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:34,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:34,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:34,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:34,154 INFO L87 Difference]: Start difference. First operand has 1486 states, 875 states have (on average 1.2765714285714285) internal successors, (1117), 906 states have internal predecessors, (1117), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) 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) [2023-11-23 21:14:37,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:40,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:42,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:43,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:43,632 INFO L93 Difference]: Finished difference Result 4315 states and 6358 transitions. [2023-11-23 21:14:43,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:14:43,634 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 [2023-11-23 21:14:43,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:43,682 INFO L225 Difference]: With dead ends: 4315 [2023-11-23 21:14:43,682 INFO L226 Difference]: Without dead ends: 2838 [2023-11-23 21:14:43,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:43,701 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 2022 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:43,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3648 Invalid, 622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 612 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2023-11-23 21:14:43,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2023-11-23 21:14:44,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2834. [2023-11-23 21:14:44,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 1673 states have (on average 1.269575612671847) internal successors, (2124), 1728 states have internal predecessors, (2124), 996 states have call successors, (996), 163 states have call predecessors, (996), 162 states have return successors, (992), 986 states have call predecessors, (992), 992 states have call successors, (992) [2023-11-23 21:14:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 4112 transitions. [2023-11-23 21:14:44,051 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 4112 transitions. Word has length 111 [2023-11-23 21:14:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:44,053 INFO L495 AbstractCegarLoop]: Abstraction has 2834 states and 4112 transitions. [2023-11-23 21:14:44,053 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) [2023-11-23 21:14:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 4112 transitions. [2023-11-23 21:14:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:14:44,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:44,064 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] [2023-11-23 21:14:44,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:14:44,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:14:44,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:44,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1640002503, now seen corresponding path program 1 times [2023-11-23 21:14:44,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:44,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234616766] [2023-11-23 21:14:44,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:44,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-23 21:14:44,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:44,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234616766] [2023-11-23 21:14:44,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234616766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:44,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:44,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:44,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281789207] [2023-11-23 21:14:44,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:44,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:44,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:44,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:44,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:44,504 INFO L87 Difference]: Start difference. First operand 2834 states and 4112 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 21:14:48,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:50,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:52,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:54,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:55,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:55,608 INFO L93 Difference]: Finished difference Result 8336 states and 12094 transitions. [2023-11-23 21:14:55,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:14:55,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-23 21:14:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:55,669 INFO L225 Difference]: With dead ends: 8336 [2023-11-23 21:14:55,670 INFO L226 Difference]: Without dead ends: 5521 [2023-11-23 21:14:55,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:55,690 INFO L413 NwaCegarLoop]: 1867 mSDtfsCounter, 2038 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:55,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 3632 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 604 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2023-11-23 21:14:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2023-11-23 21:14:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5491. [2023-11-23 21:14:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 3252 states have (on average 1.270910209102091) internal successors, (4133), 3364 states have internal predecessors, (4133), 1915 states have call successors, (1915), 324 states have call predecessors, (1915), 321 states have return successors, (1921), 1888 states have call predecessors, (1921), 1911 states have call successors, (1921) [2023-11-23 21:14:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 7969 transitions. [2023-11-23 21:14:56,095 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 7969 transitions. Word has length 115 [2023-11-23 21:14:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:56,096 INFO L495 AbstractCegarLoop]: Abstraction has 5491 states and 7969 transitions. [2023-11-23 21:14:56,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 21:14:56,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 7969 transitions. [2023-11-23 21:14:56,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:14:56,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:56,105 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2023-11-23 21:14:56,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:14:56,105 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:14:56,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:56,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2026701482, now seen corresponding path program 1 times [2023-11-23 21:14:56,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:56,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987688423] [2023-11-23 21:14:56,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:56,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:56,419 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-23 21:14:56,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:56,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987688423] [2023-11-23 21:14:56,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987688423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:56,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:56,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:56,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964182346] [2023-11-23 21:14:56,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:56,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:56,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:56,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:56,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:56,425 INFO L87 Difference]: Start difference. First operand 5491 states and 7969 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:15:00,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:04,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:06,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []