./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-sis-sis900.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/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_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/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-sis-sis900.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/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_75f892c2-7414-42b3-8415-ee4a6d633586/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 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:29:19,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:29:19,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:29:19,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:29:19,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:29:19,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:29:19,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:29:19,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:29:19,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:29:19,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:29:19,398 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:29:19,400 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:29:19,400 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:29:19,402 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:29:19,403 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:29:19,403 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:29:19,403 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:29:19,404 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:29:19,405 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:29:19,405 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:29:19,406 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:29:19,406 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:29:19,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:29:19,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:29:19,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:29:19,409 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:29:19,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:29:19,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:29:19,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:29:19,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:29:19,412 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:29:19,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:29:19,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:29:19,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:29:19,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:19,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:29:19,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:29:19,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:29:19,414 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:29:19,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:29:19,415 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:29:19,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:29:19,415 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:29:19,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:29:19,416 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_75f892c2-7414-42b3-8415-ee4a6d633586/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82e959473290e80a4f353bcd3c2747bafa4ce239975e14e29f8e5bf5eff4b01b [2023-11-23 21:29:19,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:29:19,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:29:19,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:29:19,793 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:29:19,794 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:29:19,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2023-11-23 21:29:23,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:29:24,004 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:29:24,005 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2023-11-23 21:29:24,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/data/9b6ca0402/382e62495b7e4a68ab3a469a32308898/FLAG1be6ebcd7 [2023-11-23 21:29:24,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/data/9b6ca0402/382e62495b7e4a68ab3a469a32308898 [2023-11-23 21:29:24,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:29:24,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:29:24,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:24,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:29:24,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:29:24,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6b42ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:24, skipping insertion in model container [2023-11-23 21:29:24,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:29:24" (1/1) ... [2023-11-23 21:29:24,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:29:28,162 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2023-11-23 21:29:28,167 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2023-11-23 21:29:28,168 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2023-11-23 21:29:28,169 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2023-11-23 21:29:28,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:28,238 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:29:28,366 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"); [5236] [2023-11-23 21:29:28,368 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)); [5243] [2023-11-23 21:29:28,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5250] [2023-11-23 21:29:28,371 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)); [5286-5287] [2023-11-23 21:29:28,372 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"); [5292-5294] [2023-11-23 21:29:28,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5411] [2023-11-23 21:29:28,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5419] [2023-11-23 21:29:28,382 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)); [5521-5522] [2023-11-23 21:29:28,385 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)); [5555-5556] [2023-11-23 21:29:28,711 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343367,343380] [2023-11-23 21:29:28,712 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343536,343549] [2023-11-23 21:29:28,712 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343703,343716] [2023-11-23 21:29:28,713 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_75f892c2-7414-42b3-8415-ee4a6d633586/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i[343871,343884] [2023-11-23 21:29:28,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:29:29,065 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:29:29,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29 WrapperNode [2023-11-23 21:29:29,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:29:29,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:29,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:29:29,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:29:29,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,267 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,600 INFO L138 Inliner]: procedures = 454, calls = 1990, calls flagged for inlining = 238, calls inlined = 222, statements flattened = 6095 [2023-11-23 21:29:29,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:29:29,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:29:29,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:29:29,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:29:29,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:29,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:30,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:30,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:30,094 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:29:30,095 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:29:30,095 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:29:30,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:29:30,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (1/1) ... [2023-11-23 21:29:30,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:29:30,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:29:30,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:29:30,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75f892c2-7414-42b3-8415-ee4a6d633586/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:29:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rxfilter [2023-11-23 21:29:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rxfilter [2023-11-23 21:29:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:29:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:29:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:29:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:29:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:29:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:29:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:29:30,227 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:29:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:29:30,228 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:29:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:29:30,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:29:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:29:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:29:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 21:29:30,229 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 21:29:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:29:30,230 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:29:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:29:30,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:29:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_default_phy [2023-11-23 21:29:30,230 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_default_phy [2023-11-23 21:29:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 21:29:30,231 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 21:29:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_75 [2023-11-23 21:29:30,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_75 [2023-11-23 21:29:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-11-23 21:29:30,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-11-23 21:29:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:29:30,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:29:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:29:30,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:29:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_check_mode [2023-11-23 21:29:30,233 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_check_mode [2023-11-23 21:29:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:29:30,233 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:29:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:29:30,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:29:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:29:30,234 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:29:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:29:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:29:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:29:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:29:30,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:29:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:29:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_remove [2023-11-23 21:29:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_remove [2023-11-23 21:29:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure sis630_set_eq [2023-11-23 21:29:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure sis630_set_eq [2023-11-23 21:29:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_device [2023-11-23 21:29:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_device [2023-11-23 21:29:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:29:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:29:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:29:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2023-11-23 21:29:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sis900_cleanup_module_14_2 [2023-11-23 21:29:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_tx_ring [2023-11-23 21:29:30,238 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_tx_ring [2023-11-23 21:29:30,238 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:29:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:29:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_sis900_private [2023-11-23 21:29:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_sis900_private [2023-11-23 21:29:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:29:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:29:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:29:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:29:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_set_mode [2023-11-23 21:29:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_set_mode [2023-11-23 21:29:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:29:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 21:29:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 21:29:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_sis900_private [2023-11-23 21:29:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_sis900_private [2023-11-23 21:29:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:29:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:29:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:29:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:29:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:29:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:29:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:29:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:29:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:29:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:29:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_interrupt [2023-11-23 21:29:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_interrupt [2023-11-23 21:29:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_reset_phy [2023-11-23 21:29:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_reset_phy [2023-11-23 21:29:30,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:29:30,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:29:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:29:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:29:30,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:29:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:29:30,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:29:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:29:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:29:30,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:29:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:29:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-23 21:29:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-23 21:29:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_open [2023-11-23 21:29:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_open [2023-11-23 21:29:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:29:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:29:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_nway_reset [2023-11-23 21:29:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_nway_reset [2023-11-23 21:29:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:29:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:29:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:29:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:29:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:29:30,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:29:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:29:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:29:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:29:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:29:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_close [2023-11-23 21:29:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_close [2023-11-23 21:29:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:29:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:29:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:29:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:29:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:29:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:29:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:29:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:29:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_reset [2023-11-23 21:29:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_reset [2023-11-23 21:29:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:29:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:29:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:29:30,253 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:29:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:29:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:29:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:29:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:29:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-23 21:29:30,254 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-23 21:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-23 21:29:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-23 21:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:29:30,255 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_74 [2023-11-23 21:29:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_74 [2023-11-23 21:29:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:29:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:29:30,256 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:29:30,256 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_init_rx_ring [2023-11-23 21:29:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_init_rx_ring [2023-11-23 21:29:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:29:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:29:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:29:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-23 21:29:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-23 21:29:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:29:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:29:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:29:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:29:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2023-11-23 21:29:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2023-11-23 21:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:29:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-23 21:29:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-23 21:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_poll [2023-11-23 21:29:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_poll [2023-11-23 21:29:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:29:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:29:30,260 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:29:30,260 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:29:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2023-11-23 21:29:30,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2023-11-23 21:29:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:29:30,261 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:29:30,261 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:29:30,261 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:29:30,262 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_resume [2023-11-23 21:29:30,262 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_resume [2023-11-23 21:29:30,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:29:30,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:29:30,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:29:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dev_put [2023-11-23 21:29:30,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dev_put [2023-11-23 21:29:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_idle [2023-11-23 21:29:30,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_idle [2023-11-23 21:29:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure sis900_tx_timeout [2023-11-23 21:29:30,263 INFO L138 BoogieDeclarations]: Found implementation of procedure sis900_tx_timeout [2023-11-23 21:29:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:29:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:29:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:29:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:29:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:29:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:29:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:29:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:29:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:29:31,191 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:29:31,200 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:29:31,905 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:29:35,926 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:29:36,130 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:29:39,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:29:39,999 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:29:40,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:40 BoogieIcfgContainer [2023-11-23 21:29:40,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:29:40,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:29:40,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:29:40,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:29:40,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:29:24" (1/3) ... [2023-11-23 21:29:40,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2046d83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:40, skipping insertion in model container [2023-11-23 21:29:40,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:29:29" (2/3) ... [2023-11-23 21:29:40,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2046d83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:29:40, skipping insertion in model container [2023-11-23 21:29:40,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:29:40" (3/3) ... [2023-11-23 21:29:40,013 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-sis-sis900.cil.i [2023-11-23 21:29:40,032 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:29:40,032 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:29:40,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:29:40,149 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;@4e6074c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:29:40,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:29:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 1557 states, 901 states have (on average 1.288568257491676) internal successors, (1161), 927 states have internal predecessors, (1161), 560 states have call successors, (560), 94 states have call predecessors, (560), 93 states have return successors, (554), 546 states have call predecessors, (554), 554 states have call successors, (554) [2023-11-23 21:29:40,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:29:40,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:40,203 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:40,204 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 21:29:40,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:40,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1793163533, now seen corresponding path program 1 times [2023-11-23 21:29:40,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:40,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914640889] [2023-11-23 21:29:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:40,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:29:41,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:41,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914640889] [2023-11-23 21:29:41,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914640889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:41,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:41,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:41,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783757019] [2023-11-23 21:29:41,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:41,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:41,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:41,304 INFO L87 Difference]: Start difference. First operand has 1557 states, 901 states have (on average 1.288568257491676) internal successors, (1161), 927 states have internal predecessors, (1161), 560 states have call successors, (560), 94 states have call predecessors, (560), 93 states have return successors, (554), 546 states have call predecessors, (554), 554 states have call successors, (554) 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:29:45,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:46,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:46,257 INFO L93 Difference]: Finished difference Result 4549 states and 6726 transitions. [2023-11-23 21:29:46,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:46,262 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2023-11-23 21:29:46,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:46,349 INFO L225 Difference]: With dead ends: 4549 [2023-11-23 21:29:46,360 INFO L226 Difference]: Without dead ends: 3005 [2023-11-23 21:29:46,387 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 21:29:46,391 INFO L413 NwaCegarLoop]: 1932 mSDtfsCounter, 2151 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2151 SdHoareTripleChecker+Valid, 3817 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:46,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2151 Valid, 3817 Invalid, 717 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-23 21:29:46,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2023-11-23 21:29:46,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 3001. [2023-11-23 21:29:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 1752 states have (on average 1.2825342465753424) internal successors, (2247), 1803 states have internal predecessors, (2247), 1064 states have call successors, (1064), 183 states have call predecessors, (1064), 182 states have return successors, (1060), 1044 states have call predecessors, (1060), 1060 states have call successors, (1060) [2023-11-23 21:29:46,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4371 transitions. [2023-11-23 21:29:46,920 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4371 transitions. Word has length 131 [2023-11-23 21:29:46,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:46,922 INFO L495 AbstractCegarLoop]: Abstraction has 3001 states and 4371 transitions. [2023-11-23 21:29:46,923 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:29:46,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4371 transitions. [2023-11-23 21:29:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-23 21:29:46,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:46,930 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:46,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:46,931 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 21:29:46,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:46,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2081894006, now seen corresponding path program 1 times [2023-11-23 21:29:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:46,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213175643] [2023-11-23 21:29:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:46,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:29:47,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213175643] [2023-11-23 21:29:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213175643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:47,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:47,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597665308] [2023-11-23 21:29:47,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:47,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:47,311 INFO L87 Difference]: Start difference. First operand 3001 states and 4371 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:51,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:54,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:54,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:54,745 INFO L93 Difference]: Finished difference Result 8865 states and 12917 transitions. [2023-11-23 21:29:54,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:54,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 135 [2023-11-23 21:29:54,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:54,824 INFO L225 Difference]: With dead ends: 8865 [2023-11-23 21:29:54,825 INFO L226 Difference]: Without dead ends: 5887 [2023-11-23 21:29:54,852 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 21:29:54,854 INFO L413 NwaCegarLoop]: 1940 mSDtfsCounter, 2192 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:54,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2192 Valid, 3786 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 700 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2023-11-23 21:29:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5887 states. [2023-11-23 21:29:55,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5887 to 5858. [2023-11-23 21:29:55,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 3430 states have (on average 1.2836734693877552) internal successors, (4403), 3534 states have internal predecessors, (4403), 2066 states have call successors, (2066), 364 states have call predecessors, (2066), 359 states have return successors, (2068), 2017 states have call predecessors, (2068), 2062 states have call successors, (2068) [2023-11-23 21:29:55,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 8537 transitions. [2023-11-23 21:29:55,479 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 8537 transitions. Word has length 135 [2023-11-23 21:29:55,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:55,480 INFO L495 AbstractCegarLoop]: Abstraction has 5858 states and 8537 transitions. [2023-11-23 21:29:55,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-23 21:29:55,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 8537 transitions. [2023-11-23 21:29:55,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-23 21:29:55,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:55,491 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:55,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:29:55,491 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 21:29:55,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:55,501 INFO L85 PathProgramCache]: Analyzing trace with hash -753372313, now seen corresponding path program 1 times [2023-11-23 21:29:55,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:55,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231245857] [2023-11-23 21:29:55,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:55,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:29:55,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:55,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231245857] [2023-11-23 21:29:55,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231245857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:55,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:55,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:55,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001407485] [2023-11-23 21:29:55,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:55,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:55,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:55,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:55,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:55,775 INFO L87 Difference]: Start difference. First operand 5858 states and 8537 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:29:58,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:02,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:30:04,345 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 [] [2023-11-23 21:30:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:30:04,747 INFO L93 Difference]: Finished difference Result 16688 states and 24243 transitions. [2023-11-23 21:30:04,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:30:04,748 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 137 [2023-11-23 21:30:04,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:30:04,861 INFO L225 Difference]: With dead ends: 16688 [2023-11-23 21:30:04,861 INFO L226 Difference]: Without dead ends: 10853 [2023-11-23 21:30:04,906 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 21:30:04,907 INFO L413 NwaCegarLoop]: 1911 mSDtfsCounter, 1888 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:30:04,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 3756 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 731 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2023-11-23 21:30:04,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10853 states. [2023-11-23 21:30:05,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10853 to 10822. [2023-11-23 21:30:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10822 states, 6288 states have (on average 1.2708333333333333) internal successors, (7991), 6486 states have internal predecessors, (7991), 3840 states have call successors, (3840), 702 states have call predecessors, (3840), 691 states have return successors, (3850), 3743 states have call predecessors, (3850), 3836 states have call successors, (3850) [2023-11-23 21:30:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10822 states to 10822 states and 15681 transitions. [2023-11-23 21:30:05,937 INFO L78 Accepts]: Start accepts. Automaton has 10822 states and 15681 transitions. Word has length 137 [2023-11-23 21:30:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:30:05,938 INFO L495 AbstractCegarLoop]: Abstraction has 10822 states and 15681 transitions. [2023-11-23 21:30:05,940 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:30:05,940 INFO L276 IsEmpty]: Start isEmpty. Operand 10822 states and 15681 transitions. [2023-11-23 21:30:05,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-23 21:30:05,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:30:05,945 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 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] [2023-11-23 21:30:05,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:30:05,946 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:30:05,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:30:05,946 INFO L85 PathProgramCache]: Analyzing trace with hash -917860774, now seen corresponding path program 1 times [2023-11-23 21:30:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:30:05,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266308668] [2023-11-23 21:30:05,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:30:05,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:30:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:30:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-11-23 21:30:06,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:30:06,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266308668] [2023-11-23 21:30:06,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266308668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:30:06,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:30:06,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:30:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84536257] [2023-11-23 21:30:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:30:06,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:30:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:30:06,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:30:06,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:30:06,335 INFO L87 Difference]: Start difference. First operand 10822 states and 15681 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)