./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-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:22:22,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:22:22,435 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:22:22,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:22:22,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:22:22,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:22:22,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:22:22,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:22:22,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:22:22,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:22:22,504 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:22:22,505 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:22:22,506 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:22:22,508 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:22:22,509 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:22:22,509 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:22:22,510 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:22:22,510 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:22:22,511 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:22:22,511 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:22:22,512 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:22:22,513 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:22:22,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:22:22,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:22:22,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:22:22,515 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:22:22,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:22:22,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:22:22,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:22:22,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:22:22,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:22:22,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:22:22,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:22:22,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:22:22,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:22:22,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:22:22,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:22:22,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:22:22,521 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:22:22,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:22:22,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:22:22,522 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:22:22,523 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:22:22,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:22:22,524 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2023-11-24 23:22:22,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:22:22,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:22:22,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:22:22,871 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:22:22,871 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:22:22,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2023-11-24 23:22:26,017 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:22:26,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:22:26,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2023-11-24 23:22:26,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/data/efaf0798b/9559dbbde2de453c9d27d68ea1675c76/FLAG61ed1016a [2023-11-24 23:22:26,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/data/efaf0798b/9559dbbde2de453c9d27d68ea1675c76 [2023-11-24 23:22:26,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:22:26,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:22:26,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:22:26,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:22:26,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:22:26,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:22:26" (1/1) ... [2023-11-24 23:22:26,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6508ef1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:26, skipping insertion in model container [2023-11-24 23:22:26,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:22:26" (1/1) ... [2023-11-24 23:22:26,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:22:30,652 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2023-11-24 23:22:30,657 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2023-11-24 23:22:30,658 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2023-11-24 23:22:30,658 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2023-11-24 23:22:30,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:22:30,741 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:22:30,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5400] [2023-11-24 23:22:30,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5408] [2023-11-24 23:22:31,421 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"); [7344] [2023-11-24 23:22:31,422 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)); [7351] [2023-11-24 23:22:31,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7358] [2023-11-24 23:22:31,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7371] [2023-11-24 23:22:31,724 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2023-11-24 23:22:31,725 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2023-11-24 23:22:31,725 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2023-11-24 23:22:31,726 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_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2023-11-24 23:22:31,733 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:22:32,046 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:22:32,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32 WrapperNode [2023-11-24 23:22:32,047 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:22:32,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:22:32,049 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:22:32,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:22:32,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,478 INFO L138 Inliner]: procedures = 495, calls = 2673, calls flagged for inlining = 242, calls inlined = 227, statements flattened = 5724 [2023-11-24 23:22:32,479 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:22:32,480 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:22:32,480 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:22:32,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:22:32,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,668 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:22:32,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:22:32,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:22:32,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:22:32,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (1/1) ... [2023-11-24 23:22:32,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:22:32,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:22:32,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:22:32,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc8cc2-20ef-448f-b446-7fbe2dfe31aa/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:22:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2023-11-24 23:22:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2023-11-24 23:22:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-24 23:22:32,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-24 23:22:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2023-11-24 23:22:32,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2023-11-24 23:22:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:22:32,971 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:22:32,971 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2023-11-24 23:22:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2023-11-24 23:22:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2023-11-24 23:22:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2023-11-24 23:22:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:22:32,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:22:32,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:22:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:22:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2023-11-24 23:22:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2023-11-24 23:22:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2023-11-24 23:22:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2023-11-24 23:22:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:22:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:22:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2023-11-24 23:22:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2023-11-24 23:22:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2023-11-24 23:22:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2023-11-24 23:22:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_64 [2023-11-24 23:22:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_64 [2023-11-24 23:22:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2023-11-24 23:22:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2023-11-24 23:22:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-24 23:22:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-24 23:22:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2023-11-24 23:22:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2023-11-24 23:22:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2023-11-24 23:22:32,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2023-11-24 23:22:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2023-11-24 23:22:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2023-11-24 23:22:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2023-11-24 23:22:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2023-11-24 23:22:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2023-11-24 23:22:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2023-11-24 23:22:32,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:22:32,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:22:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:22:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:22:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2023-11-24 23:22:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2023-11-24 23:22:32,978 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2023-11-24 23:22:32,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2023-11-24 23:22:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:22:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-24 23:22:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-24 23:22:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:22:32,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:22:32,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:22:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-24 23:22:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-24 23:22:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2023-11-24 23:22:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2023-11-24 23:22:32,980 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2023-11-24 23:22:32,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2023-11-24 23:22:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:22:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:22:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:22:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2023-11-24 23:22:32,981 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2023-11-24 23:22:32,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:22:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-24 23:22:32,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-24 23:22:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-24 23:22:32,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-24 23:22:32,982 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2023-11-24 23:22:32,982 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2023-11-24 23:22:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:22:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:22:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:22:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:22:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2023-11-24 23:22:32,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2023-11-24 23:22:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2023-11-24 23:22:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2023-11-24 23:22:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-24 23:22:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-24 23:22:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-24 23:22:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-24 23:22:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2023-11-24 23:22:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2023-11-24 23:22:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2023-11-24 23:22:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2023-11-24 23:22:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:22:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:22:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-24 23:22:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-24 23:22:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2023-11-24 23:22:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2023-11-24 23:22:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:22:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:22:32,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:22:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-24 23:22:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-24 23:22:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:22:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:22:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:22:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:22:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:22:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2023-11-24 23:22:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2023-11-24 23:22:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:22:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2023-11-24 23:22:32,988 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2023-11-24 23:22:32,988 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:22:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:22:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-24 23:22:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-24 23:22:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:22:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:22:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2023-11-24 23:22:32,989 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2023-11-24 23:22:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:22:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:22:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2023-11-24 23:22:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2023-11-24 23:22:32,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:22:32,990 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:22:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:22:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:22:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2023-11-24 23:22:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2023-11-24 23:22:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2023-11-24 23:22:32,991 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2023-11-24 23:22:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2023-11-24 23:22:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2023-11-24 23:22:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2023-11-24 23:22:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2023-11-24 23:22:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-24 23:22:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-24 23:22:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:22:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:22:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2023-11-24 23:22:32,993 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2023-11-24 23:22:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:22:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:22:32,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:22:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:22:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2023-11-24 23:22:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2023-11-24 23:22:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:22:32,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:22:32,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-24 23:22:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-24 23:22:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2023-11-24 23:22:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2023-11-24 23:22:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2023-11-24 23:22:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2023-11-24 23:22:32,995 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2023-11-24 23:22:32,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2023-11-24 23:22:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:22:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:22:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2023-11-24 23:22:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2023-11-24 23:22:32,996 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2023-11-24 23:22:32,996 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2023-11-24 23:22:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:22:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:22:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2023-11-24 23:22:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2023-11-24 23:22:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2023-11-24 23:22:32,997 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2023-11-24 23:22:32,997 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2023-11-24 23:22:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2023-11-24 23:22:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:22:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:22:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:22:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2023-11-24 23:22:32,998 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2023-11-24 23:22:32,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2023-11-24 23:22:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2023-11-24 23:22:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:22:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-24 23:22:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-24 23:22:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2023-11-24 23:22:32,999 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2023-11-24 23:22:32,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:22:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-24 23:22:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-24 23:22:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2023-11-24 23:22:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2023-11-24 23:22:33,000 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:22:33,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:22:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2023-11-24 23:22:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2023-11-24 23:22:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:22:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:22:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2023-11-24 23:22:33,001 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2023-11-24 23:22:33,001 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2023-11-24 23:22:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2023-11-24 23:22:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:22:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:22:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-24 23:22:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-24 23:22:33,002 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2023-11-24 23:22:33,002 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2023-11-24 23:22:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2023-11-24 23:22:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2023-11-24 23:22:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-24 23:22:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-24 23:22:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:22:33,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:22:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:22:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:22:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2023-11-24 23:22:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2023-11-24 23:22:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2023-11-24 23:22:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2023-11-24 23:22:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:22:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:22:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2023-11-24 23:22:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2023-11-24 23:22:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:22:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-24 23:22:33,005 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-24 23:22:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:22:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:22:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2023-11-24 23:22:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2023-11-24 23:22:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2023-11-24 23:22:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2023-11-24 23:22:33,006 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2023-11-24 23:22:33,006 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2023-11-24 23:22:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2023-11-24 23:22:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2023-11-24 23:22:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-24 23:22:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-24 23:22:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2023-11-24 23:22:33,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2023-11-24 23:22:33,007 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2023-11-24 23:22:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2023-11-24 23:22:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:22:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:22:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2023-11-24 23:22:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2023-11-24 23:22:33,008 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2023-11-24 23:22:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2023-11-24 23:22:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-24 23:22:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-24 23:22:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:22:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-24 23:22:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-24 23:22:33,009 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-24 23:22:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-24 23:22:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:22:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:22:33,010 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-24 23:22:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-24 23:22:34,029 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:22:34,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:22:34,471 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:22:36,637 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1505#1.base, #t~mem1505#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8);#t~nondet1506#1.base, #t~nondet1506#1.offset := 129, 0; [2023-11-24 23:22:36,637 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881: SUMMARY for call lmc_trace(#t~mem1505#1.base, #t~mem1505#1.offset, #t~nondet1506#1.base, #t~nondet1506#1.offset); srcloc: null [2023-11-24 23:22:36,637 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L12881-1: havoc #t~mem1505#1.base, #t~mem1505#1.offset;havoc #t~nondet1506#1.base, #t~nondet1506#1.offset; [2023-11-24 23:22:42,040 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:22:42,346 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:22:46,093 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:22:46,094 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:22:46,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:46 BoogieIcfgContainer [2023-11-24 23:22:46,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:22:46,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:22:46,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:22:46,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:22:46,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:22:26" (1/3) ... [2023-11-24 23:22:46,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d8d6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:46, skipping insertion in model container [2023-11-24 23:22:46,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:32" (2/3) ... [2023-11-24 23:22:46,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d8d6c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:46, skipping insertion in model container [2023-11-24 23:22:46,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:46" (3/3) ... [2023-11-24 23:22:46,121 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2023-11-24 23:22:46,145 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:22:46,145 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:22:46,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:22:46,375 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;@77b03994, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:22:46,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:22:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 2212 states, 1256 states have (on average 1.3128980891719746) internal successors, (1649), 1326 states have internal predecessors, (1649), 834 states have call successors, (834), 120 states have call predecessors, (834), 119 states have return successors, (827), 785 states have call predecessors, (827), 827 states have call successors, (827) [2023-11-24 23:22:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-24 23:22:46,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:46,434 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:46,434 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)] === [2023-11-24 23:22:46,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:46,447 INFO L85 PathProgramCache]: Analyzing trace with hash 283704652, now seen corresponding path program 1 times [2023-11-24 23:22:46,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:46,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730757247] [2023-11-24 23:22:46,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:46,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2023-11-24 23:22:47,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:47,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730757247] [2023-11-24 23:22:47,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730757247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:47,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:47,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:47,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958871954] [2023-11-24 23:22:47,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:47,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:47,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:47,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:47,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:47,515 INFO L87 Difference]: Start difference. First operand has 2212 states, 1256 states have (on average 1.3128980891719746) internal successors, (1649), 1326 states have internal predecessors, (1649), 834 states have call successors, (834), 120 states have call predecessors, (834), 119 states have return successors, (827), 785 states have call predecessors, (827), 827 states have call successors, (827) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-24 23:22:51,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:51,153 INFO L93 Difference]: Finished difference Result 6492 states and 9840 transitions. [2023-11-24 23:22:51,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 175 [2023-11-24 23:22:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:51,224 INFO L225 Difference]: With dead ends: 6492 [2023-11-24 23:22:51,224 INFO L226 Difference]: Without dead ends: 4300 [2023-11-24 23:22:51,249 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 [2023-11-24 23:22:51,253 INFO L413 NwaCegarLoop]: 2887 mSDtfsCounter, 3168 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3168 SdHoareTripleChecker+Valid, 5728 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:51,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3168 Valid, 5728 Invalid, 879 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-24 23:22:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4300 states. [2023-11-24 23:22:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4300 to 4296. [2023-11-24 23:22:51,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4296 states, 2455 states have (on average 1.3091649694501017) internal successors, (3214), 2594 states have internal predecessors, (3214), 1604 states have call successors, (1604), 235 states have call predecessors, (1604), 234 states have return successors, (1600), 1516 states have call predecessors, (1600), 1600 states have call successors, (1600) [2023-11-24 23:22:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 6418 transitions. [2023-11-24 23:22:51,844 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 6418 transitions. Word has length 175 [2023-11-24 23:22:51,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:51,849 INFO L495 AbstractCegarLoop]: Abstraction has 4296 states and 6418 transitions. [2023-11-24 23:22:51,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-24 23:22:51,849 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 6418 transitions. [2023-11-24 23:22:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-24 23:22:51,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:51,865 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:51,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:22:51,865 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)] === [2023-11-24 23:22:51,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:51,866 INFO L85 PathProgramCache]: Analyzing trace with hash 611365328, now seen corresponding path program 1 times [2023-11-24 23:22:51,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:51,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227947142] [2023-11-24 23:22:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:51,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:52,335 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:22:52,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:52,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227947142] [2023-11-24 23:22:52,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227947142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:52,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:52,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:52,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40912976] [2023-11-24 23:22:52,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:52,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:52,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:52,345 INFO L87 Difference]: Start difference. First operand 4296 states and 6418 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-24 23:22:55,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:55,594 INFO L93 Difference]: Finished difference Result 12510 states and 18708 transitions. [2023-11-24 23:22:55,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:55,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 181 [2023-11-24 23:22:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:55,693 INFO L225 Difference]: With dead ends: 12510 [2023-11-24 23:22:55,693 INFO L226 Difference]: Without dead ends: 8245 [2023-11-24 23:22:55,732 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 [2023-11-24 23:22:55,734 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 2992 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2992 SdHoareTripleChecker+Valid, 5747 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:55,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2992 Valid, 5747 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-24 23:22:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8245 states. [2023-11-24 23:22:56,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8245 to 8215. [2023-11-24 23:22:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8215 states, 4680 states have (on average 1.307905982905983) internal successors, (6121), 4952 states have internal predecessors, (6121), 3075 states have call successors, (3075), 458 states have call predecessors, (3075), 457 states have return successors, (3095), 2896 states have call predecessors, (3095), 3071 states have call successors, (3095) [2023-11-24 23:22:56,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8215 states to 8215 states and 12291 transitions. [2023-11-24 23:22:56,609 INFO L78 Accepts]: Start accepts. Automaton has 8215 states and 12291 transitions. Word has length 181 [2023-11-24 23:22:56,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:56,611 INFO L495 AbstractCegarLoop]: Abstraction has 8215 states and 12291 transitions. [2023-11-24 23:22:56,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-24 23:22:56,612 INFO L276 IsEmpty]: Start isEmpty. Operand 8215 states and 12291 transitions. [2023-11-24 23:22:56,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-24 23:22:56,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:56,619 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:56,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:22:56,619 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)] === [2023-11-24 23:22:56,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash -214809939, now seen corresponding path program 1 times [2023-11-24 23:22:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028541747] [2023-11-24 23:22:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:56,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:22:56,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:56,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028541747] [2023-11-24 23:22:56,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028541747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:56,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:56,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:56,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776541220] [2023-11-24 23:22:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:56,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:56,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:56,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:56,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:56,899 INFO L87 Difference]: Start difference. First operand 8215 states and 12291 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-24 23:23:01,849 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 [] [2023-11-24 23:23:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:23:02,747 INFO L93 Difference]: Finished difference Result 23227 states and 34695 transitions. [2023-11-24 23:23:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:23:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 183 [2023-11-24 23:23:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:23:02,951 INFO L225 Difference]: With dead ends: 23227 [2023-11-24 23:23:02,952 INFO L226 Difference]: Without dead ends: 15043 [2023-11-24 23:23:03,039 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 [2023-11-24 23:23:03,043 INFO L413 NwaCegarLoop]: 3106 mSDtfsCounter, 2704 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 5934 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:23:03,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 5934 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-24 23:23:03,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15043 states. [2023-11-24 23:23:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15043 to 15001. [2023-11-24 23:23:04,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15001 states, 8582 states have (on average 1.3054066651130272) internal successors, (11203), 9092 states have internal predecessors, (11203), 5523 states have call successors, (5523), 894 states have call predecessors, (5523), 893 states have return successors, (5653), 5166 states have call predecessors, (5653), 5519 states have call successors, (5653) [2023-11-24 23:23:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15001 states to 15001 states and 22379 transitions. [2023-11-24 23:23:04,711 INFO L78 Accepts]: Start accepts. Automaton has 15001 states and 22379 transitions. Word has length 183 [2023-11-24 23:23:04,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:23:04,713 INFO L495 AbstractCegarLoop]: Abstraction has 15001 states and 22379 transitions. [2023-11-24 23:23:04,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-24 23:23:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 15001 states and 22379 transitions. [2023-11-24 23:23:04,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-24 23:23:04,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:23:04,721 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:23:04,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:23:04,722 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)] === [2023-11-24 23:23:04,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:23:04,723 INFO L85 PathProgramCache]: Analyzing trace with hash -609611927, now seen corresponding path program 1 times [2023-11-24 23:23:04,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:23:04,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368896488] [2023-11-24 23:23:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:23:04,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:23:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:23:05,455 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:23:05,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:23:05,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368896488] [2023-11-24 23:23:05,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368896488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:23:05,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:23:05,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-24 23:23:05,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880773170] [2023-11-24 23:23:05,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:23:05,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:23:05,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:23:05,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:23:05,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:23:05,458 INFO L87 Difference]: Start difference. First operand 15001 states and 22379 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)