./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-irda-via-ircc.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_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/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_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/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-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/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_04c1cb83-6483-40a3-a18f-1120609fc650/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 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:24,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:24,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:32:24,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:24,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:24,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:24,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:24,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:24,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:24,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:24,996 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:24,996 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:24,997 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:24,998 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:24,998 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:24,999 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:25,000 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:25,001 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:25,001 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:25,002 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:25,003 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:25,004 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:25,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:25,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:25,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:25,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:25,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:25,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:25,009 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:25,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:25,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:25,010 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:25,010 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:25,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:25,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:25,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:25,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:25,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:25,013 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:25,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:25,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:25,014 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:25,014 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:25,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:25,015 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_04c1cb83-6483-40a3-a18f-1120609fc650/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67e7778ced54570c612880d3f2f5d48e6e2d3dc55afd632628e45d31cdc74c58 [2023-11-23 21:32:25,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:25,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:25,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:25,334 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:25,335 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:25,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-23 21:32:28,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:29,078 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:29,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-23 21:32:29,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/data/9befb97df/d23567884c2744ddb649dc6e6c5703e8/FLAGd80a4fa83 [2023-11-23 21:32:29,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/data/9befb97df/d23567884c2744ddb649dc6e6c5703e8 [2023-11-23 21:32:29,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:29,168 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:29,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:29,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:29,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:29,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:29" (1/1) ... [2023-11-23 21:32:29,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66855e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:29, skipping insertion in model container [2023-11-23 21:32:29,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:29" (1/1) ... [2023-11-23 21:32:29,372 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:32,447 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2023-11-23 21:32:32,452 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2023-11-23 21:32:32,453 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2023-11-23 21:32:32,455 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2023-11-23 21:32:32,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:32,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:32,709 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"); [5742] [2023-11-23 21:32:32,712 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)); [5749] [2023-11-23 21:32:32,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5756] [2023-11-23 21:32:32,714 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)); [5786-5787] [2023-11-23 21:32:32,715 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"); [5792-5794] [2023-11-23 21:32:32,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5875] [2023-11-23 21:32:32,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5883] [2023-11-23 21:32:33,001 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329615,329628] [2023-11-23 21:32:33,002 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329784,329797] [2023-11-23 21:32:33,002 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[329951,329964] [2023-11-23 21:32:33,003 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_04c1cb83-6483-40a3-a18f-1120609fc650/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[330119,330132] [2023-11-23 21:32:33,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:33,175 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:33,182 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:33,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33 WrapperNode [2023-11-23 21:32:33,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:33,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:33,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:33,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:33,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,554 INFO L138 Inliner]: procedures = 395, calls = 2115, calls flagged for inlining = 159, calls inlined = 138, statements flattened = 4857 [2023-11-23 21:32:33,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:33,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:33,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:33,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:33,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:33,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:33,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:33,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:33,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (1/1) ... [2023-11-23 21:32:33,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:33,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:33,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:33,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04c1cb83-6483-40a3-a18f-1120609fc650/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:32:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:32:33,976 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-23 21:32:33,976 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-23 21:32:33,977 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-23 21:32:33,977 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-23 21:32:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:32:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:32:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:32:33,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:32:33,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2023-11-23 21:32:33,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2023-11-23 21:32:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:32:33,980 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:32:33,980 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-23 21:32:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-23 21:32:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:32:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:32:33,983 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-23 21:32:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-23 21:32:33,984 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-23 21:32:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-23 21:32:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-23 21:32:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-23 21:32:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:32:33,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:32:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:32:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-23 21:32:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-23 21:32:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-23 21:32:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-23 21:32:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-23 21:32:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-23 21:32:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:32:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:32:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:32:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-23 21:32:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-23 21:32:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-23 21:32:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-23 21:32:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:32:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:32:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-23 21:32:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-23 21:32:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:32:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:32:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-23 21:32:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-23 21:32:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-23 21:32:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-23 21:32:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:32:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-23 21:32:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-23 21:32:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-23 21:32:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-23 21:32:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-23 21:32:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-23 21:32:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:32:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:32:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:32:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:32:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:32:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-23 21:32:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-23 21:32:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:32:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:32:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:32:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-23 21:32:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-23 21:32:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:32:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:32:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:32:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:32:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-23 21:32:33,996 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-23 21:32:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-23 21:32:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-23 21:32:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-23 21:32:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-23 21:32:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:32:33,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:32:33,997 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-23 21:32:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-23 21:32:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:32:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:32:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:32:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-23 21:32:33,998 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-23 21:32:33,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:32:33,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:32:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:32:33,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:32:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:32:33,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:32:34,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:32:34,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:32:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:32:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-23 21:32:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-23 21:32:34,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:32:34,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:32:34,002 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:32:34,003 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:32:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-23 21:32:34,003 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-23 21:32:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-23 21:32:34,003 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-23 21:32:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:32:34,004 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:32:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:32:34,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:32:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-23 21:32:34,004 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-23 21:32:34,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-23 21:32:34,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-23 21:32:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:32:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:32:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:32:34,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:32:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-23 21:32:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-23 21:32:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:32:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:32:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-23 21:32:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-23 21:32:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-23 21:32:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-23 21:32:34,008 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-23 21:32:34,009 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-23 21:32:34,010 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:32:34,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:32:34,014 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-23 21:32:34,014 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-23 21:32:34,015 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-23 21:32:34,015 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-23 21:32:34,016 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:32:34,016 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:32:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:32:34,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:32:34,018 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-23 21:32:34,024 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-23 21:32:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:32:34,024 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:32:34,025 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:32:34,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:32:34,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:32:34,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-23 21:32:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-23 21:32:34,026 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:32:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:32:34,026 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 21:32:34,026 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 21:32:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:32:34,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:32:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:32:34,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:32:34,027 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-23 21:32:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-23 21:32:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 21:32:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 21:32:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:32:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:32:34,028 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:32:34,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:32:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:32:34,029 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:32:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 21:32:34,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 21:32:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:32:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-23 21:32:34,029 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-23 21:32:34,029 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-23 21:32:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-23 21:32:34,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-23 21:32:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-23 21:32:34,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:32:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:32:34,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-23 21:32:34,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-23 21:32:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-23 21:32:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-23 21:32:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-23 21:32:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-23 21:32:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:32:34,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:32:34,031 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-23 21:32:34,032 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-23 21:32:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-23 21:32:34,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-23 21:32:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-23 21:32:34,032 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-23 21:32:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 21:32:34,032 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 21:32:34,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:32:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-23 21:32:34,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-23 21:32:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:32:34,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:32:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-23 21:32:34,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-23 21:32:34,832 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:34,845 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:35,139 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:32:40,162 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:32:40,734 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:43,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:43,190 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:32:43,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:43 BoogieIcfgContainer [2023-11-23 21:32:43,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:43,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:43,196 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:43,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:43,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:29" (1/3) ... [2023-11-23 21:32:43,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511272bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:43, skipping insertion in model container [2023-11-23 21:32:43,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:33" (2/3) ... [2023-11-23 21:32:43,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511272bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:43, skipping insertion in model container [2023-11-23 21:32:43,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:43" (3/3) ... [2023-11-23 21:32:43,202 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-23 21:32:43,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:43,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:32:43,319 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:43,326 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;@4590b1e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:43,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:32:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 1736 states, 935 states have (on average 1.2524064171122995) internal successors, (1171), 960 states have internal predecessors, (1171), 706 states have call successors, (706), 93 states have call predecessors, (706), 92 states have return successors, (702), 691 states have call predecessors, (702), 702 states have call successors, (702) [2023-11-23 21:32:43,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:32:43,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:43,354 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 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 21:32:43,354 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 21:32:43,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:43,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1003563768, now seen corresponding path program 1 times [2023-11-23 21:32:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099078016] [2023-11-23 21:32:43,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:43,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:44,144 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 21:32:44,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:44,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099078016] [2023-11-23 21:32:44,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099078016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:44,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:44,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:44,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227994824] [2023-11-23 21:32:44,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:44,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:44,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:44,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:44,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:44,207 INFO L87 Difference]: Start difference. First operand has 1736 states, 935 states have (on average 1.2524064171122995) internal successors, (1171), 960 states have internal predecessors, (1171), 706 states have call successors, (706), 93 states have call predecessors, (706), 92 states have return successors, (702), 691 states have call predecessors, (702), 702 states have call successors, (702) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 21:32:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:47,582 INFO L93 Difference]: Finished difference Result 5116 states and 7636 transitions. [2023-11-23 21:32:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:47,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 67 [2023-11-23 21:32:47,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:47,635 INFO L225 Difference]: With dead ends: 5116 [2023-11-23 21:32:47,636 INFO L226 Difference]: Without dead ends: 3382 [2023-11-23 21:32:47,655 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 21:32:47,659 INFO L413 NwaCegarLoop]: 2363 mSDtfsCounter, 2492 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:47,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 4675 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-23 21:32:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2023-11-23 21:32:48,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 3378. [2023-11-23 21:32:48,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3378 states, 1825 states have (on average 1.2476712328767123) internal successors, (2277), 1873 states have internal predecessors, (2277), 1369 states have call successors, (1369), 182 states have call predecessors, (1369), 181 states have return successors, (1366), 1344 states have call predecessors, (1366), 1366 states have call successors, (1366) [2023-11-23 21:32:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3378 states to 3378 states and 5012 transitions. [2023-11-23 21:32:48,127 INFO L78 Accepts]: Start accepts. Automaton has 3378 states and 5012 transitions. Word has length 67 [2023-11-23 21:32:48,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:48,128 INFO L495 AbstractCegarLoop]: Abstraction has 3378 states and 5012 transitions. [2023-11-23 21:32:48,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 21:32:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3378 states and 5012 transitions. [2023-11-23 21:32:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 21:32:48,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:48,144 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:32:48,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:32:48,145 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 21:32:48,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:48,145 INFO L85 PathProgramCache]: Analyzing trace with hash -878118038, now seen corresponding path program 1 times [2023-11-23 21:32:48,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:48,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117501974] [2023-11-23 21:32:48,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:48,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 21:32:48,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:48,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117501974] [2023-11-23 21:32:48,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117501974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:48,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:48,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:48,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444422329] [2023-11-23 21:32:48,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:48,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:48,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:48,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:48,656 INFO L87 Difference]: Start difference. First operand 3378 states and 5012 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 21:32:51,858 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 21:32:54,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:55,782 INFO L93 Difference]: Finished difference Result 9376 states and 13940 transitions. [2023-11-23 21:32:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2023-11-23 21:32:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:55,875 INFO L225 Difference]: With dead ends: 9376 [2023-11-23 21:32:55,875 INFO L226 Difference]: Without dead ends: 6009 [2023-11-23 21:32:55,919 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 21:32:55,921 INFO L413 NwaCegarLoop]: 2421 mSDtfsCounter, 2014 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 4732 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:55,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 4732 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-11-23 21:32:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2023-11-23 21:32:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 5978. [2023-11-23 21:32:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 3205 states have (on average 1.2443057722308892) internal successors, (3988), 3299 states have internal predecessors, (3988), 2439 states have call successors, (2439), 334 states have call predecessors, (2439), 331 states have return successors, (2470), 2384 states have call predecessors, (2470), 2436 states have call successors, (2470) [2023-11-23 21:32:56,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 8897 transitions. [2023-11-23 21:32:56,725 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 8897 transitions. Word has length 69 [2023-11-23 21:32:56,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:56,726 INFO L495 AbstractCegarLoop]: Abstraction has 5978 states and 8897 transitions. [2023-11-23 21:32:56,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 21:32:56,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 8897 transitions. [2023-11-23 21:32:56,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 21:32:56,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:56,731 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:32:56,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:32:56,731 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 21:32:56,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:56,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1379971078, now seen corresponding path program 1 times [2023-11-23 21:32:56,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:56,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950713118] [2023-11-23 21:32:56,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:56,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 21:32:57,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950713118] [2023-11-23 21:32:57,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950713118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:57,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:57,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496534864] [2023-11-23 21:32:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:57,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:57,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:57,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:57,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:57,111 INFO L87 Difference]: Start difference. First operand 5978 states and 8897 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 21:32:59,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:33:03,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:33:05,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:05,231 INFO L93 Difference]: Finished difference Result 17084 states and 25445 transitions. [2023-11-23 21:33:05,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:33:05,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 74 [2023-11-23 21:33:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:05,359 INFO L225 Difference]: With dead ends: 17084 [2023-11-23 21:33:05,360 INFO L226 Difference]: Without dead ends: 11117 [2023-11-23 21:33:05,403 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 21:33:05,408 INFO L413 NwaCegarLoop]: 2369 mSDtfsCounter, 2354 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 4657 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:05,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 4657 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-23 21:33:05,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11117 states. [2023-11-23 21:33:06,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11117 to 11082. [2023-11-23 21:33:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11082 states, 5943 states have (on average 1.2417970721857647) internal successors, (7380), 6133 states have internal predecessors, (7380), 4519 states have call successors, (4519), 630 states have call predecessors, (4519), 617 states have return successors, (4600), 4390 states have call predecessors, (4600), 4516 states have call successors, (4600) [2023-11-23 21:33:06,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11082 states to 11082 states and 16499 transitions. [2023-11-23 21:33:06,704 INFO L78 Accepts]: Start accepts. Automaton has 11082 states and 16499 transitions. Word has length 74 [2023-11-23 21:33:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:06,705 INFO L495 AbstractCegarLoop]: Abstraction has 11082 states and 16499 transitions. [2023-11-23 21:33:06,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-23 21:33:06,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11082 states and 16499 transitions. [2023-11-23 21:33:06,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-23 21:33:06,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:06,713 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:06,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:33:06,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:33:06,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash 568801127, now seen corresponding path program 1 times [2023-11-23 21:33:06,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:33:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436050854] [2023-11-23 21:33:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-11-23 21:33:07,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:33:07,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436050854] [2023-11-23 21:33:07,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436050854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:07,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:07,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:33:07,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967722071] [2023-11-23 21:33:07,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:07,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:33:07,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:33:07,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:33:07,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:33:07,334 INFO L87 Difference]: Start difference. First operand 11082 states and 16499 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:33:13,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:13,221 INFO L93 Difference]: Finished difference Result 11088 states and 16504 transitions. [2023-11-23 21:33:13,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:33:13,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2023-11-23 21:33:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:13,334 INFO L225 Difference]: With dead ends: 11088 [2023-11-23 21:33:13,335 INFO L226 Difference]: Without dead ends: 11086 [2023-11-23 21:33:13,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:33:13,349 INFO L413 NwaCegarLoop]: 2332 mSDtfsCounter, 2519 mSDsluCounter, 4648 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 6980 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:13,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 6980 Invalid, 698 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-23 21:33:13,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11086 states. [2023-11-23 21:33:14,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11086 to 11086. [2023-11-23 21:33:14,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11086 states, 5946 states have (on average 1.2416750756811301) internal successors, (7383), 6136 states have internal predecessors, (7383), 4519 states have call successors, (4519), 631 states have call predecessors, (4519), 618 states have return successors, (4600), 4390 states have call predecessors, (4600), 4516 states have call successors, (4600) [2023-11-23 21:33:14,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11086 states to 11086 states and 16502 transitions. [2023-11-23 21:33:14,637 INFO L78 Accepts]: Start accepts. Automaton has 11086 states and 16502 transitions. Word has length 109 [2023-11-23 21:33:14,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:14,638 INFO L495 AbstractCegarLoop]: Abstraction has 11086 states and 16502 transitions. [2023-11-23 21:33:14,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 21:33:14,639 INFO L276 IsEmpty]: Start isEmpty. Operand 11086 states and 16502 transitions. [2023-11-23 21:33:14,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-23 21:33:14,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:14,647 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:14,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:33:14,648 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:33:14,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:14,649 INFO L85 PathProgramCache]: Analyzing trace with hash -2028125547, now seen corresponding path program 1 times [2023-11-23 21:33:14,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:33:14,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447737012] [2023-11-23 21:33:14,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:14,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat