./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 11:13:24,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 11:13:24,456 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 11:13:24,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 11:13:24,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 11:13:24,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 11:13:24,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 11:13:24,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 11:13:24,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 11:13:24,502 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 11:13:24,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 11:13:24,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 11:13:24,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 11:13:24,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 11:13:24,508 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 11:13:24,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 11:13:24,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 11:13:24,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 11:13:24,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 11:13:24,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 11:13:24,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 11:13:24,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 11:13:24,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 11:13:24,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 11:13:24,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 11:13:24,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 11:13:24,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 11:13:24,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 11:13:24,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 11:13:24,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:13:24,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 11:13:24,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 11:13:24,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 11:13:24,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 11:13:24,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 11:13:24,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 11:13:24,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 11:13:24,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 11:13:24,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 11:13:24,515 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b [2024-11-20 11:13:24,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 11:13:24,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 11:13:24,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 11:13:24,847 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 11:13:24,848 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 11:13:24,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-20 11:13:26,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 11:13:26,906 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 11:13:26,906 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-20 11:13:26,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59aed2086/198f505020a24c6a8afd914ee6ac8e37/FLAG78f805723 [2024-11-20 11:13:26,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59aed2086/198f505020a24c6a8afd914ee6ac8e37 [2024-11-20 11:13:26,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 11:13:26,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 11:13:27,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 11:13:27,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 11:13:27,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 11:13:27,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:26" (1/1) ... [2024-11-20 11:13:27,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de99fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:27, skipping insertion in model container [2024-11-20 11:13:27,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:13:26" (1/1) ... [2024-11-20 11:13:27,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 11:13:28,208 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-20 11:13:28,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:13:28,689 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 11:13:28,787 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"); [5282] [2024-11-20 11:13:28,790 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)); [5289] [2024-11-20 11:13:28,790 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5297-5298] [2024-11-20 11:13:28,791 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5306-5307] [2024-11-20 11:13:28,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5320] [2024-11-20 11:13:28,797 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; incl %0": "+m" (v->counter)); [5383] [2024-11-20 11:13:28,798 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5391-5392] [2024-11-20 11:13:28,815 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-20 11:13:28,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5963] [2024-11-20 11:13:28,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5966] [2024-11-20 11:13:28,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5969] [2024-11-20 11:13:28,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5972] [2024-11-20 11:13:28,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5975] [2024-11-20 11:13:28,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5991-5992] [2024-11-20 11:13:28,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5995-5996] [2024-11-20 11:13:28,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5999-6000] [2024-11-20 11:13:28,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6003-6004] [2024-11-20 11:13:28,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6007-6008] [2024-11-20 11:13:28,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6031-6032] [2024-11-20 11:13:28,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6035-6036] [2024-11-20 11:13:28,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6039-6040] [2024-11-20 11:13:28,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6043-6044] [2024-11-20 11:13:28,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6047-6048] [2024-11-20 11:13:28,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6176] [2024-11-20 11:13:28,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6179] [2024-11-20 11:13:28,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6182] [2024-11-20 11:13:28,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6185] [2024-11-20 11:13:28,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6188] [2024-11-20 11:13:28,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [6200-6201] [2024-11-20 11:13:28,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6218-6219] [2024-11-20 11:13:28,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6222-6223] [2024-11-20 11:13:28,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6226-6227] [2024-11-20 11:13:28,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6230-6231] [2024-11-20 11:13:28,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6234-6235] [2024-11-20 11:13:28,867 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" ((u32 *)argp), "i" (4UL)); [6247-6248] [2024-11-20 11:13:28,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6261-6262] [2024-11-20 11:13:28,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6265-6266] [2024-11-20 11:13:28,868 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6269-6270] [2024-11-20 11:13:28,869 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6273-6274] [2024-11-20 11:13:28,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6277-6278] [2024-11-20 11:13:28,870 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" ((u32 *)argp), "i" (4UL)); [6290-6291] [2024-11-20 11:13:28,872 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6328-6329] [2024-11-20 11:13:28,873 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6332-6333] [2024-11-20 11:13:28,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6336-6337] [2024-11-20 11:13:28,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6340-6341] [2024-11-20 11:13:28,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6344-6345] [2024-11-20 11:13:28,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" (p), "i" (4UL)); [6357-6358] [2024-11-20 11:13:28,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:13:29,118 INFO L204 MainTranslator]: Completed translation [2024-11-20 11:13:29,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29 WrapperNode [2024-11-20 11:13:29,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 11:13:29,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 11:13:29,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 11:13:29,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 11:13:29,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,372 INFO L138 Inliner]: procedures = 180, calls = 596, calls flagged for inlining = 99, calls inlined = 93, statements flattened = 2743 [2024-11-20 11:13:29,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 11:13:29,373 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 11:13:29,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 11:13:29,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 11:13:29,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,734 INFO L175 MemorySlicer]: Split 317 memory accesses to 7 slices as follows [2, 20, 13, 1, 229, 24, 28]. 72 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 15, 0, 0, 6, 0, 0]. The 152 writes are split as follows [0, 2, 13, 0, 100, 24, 13]. [2024-11-20 11:13:29,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,879 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 11:13:29,880 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 11:13:29,881 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 11:13:29,881 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 11:13:29,882 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (1/1) ... [2024-11-20 11:13:29,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:13:29,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 11:13:29,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 11:13:29,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 11:13:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-20 11:13:29,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-20 11:13:29,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-20 11:13:29,978 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_push [2024-11-20 11:13:29,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_push [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-20 11:13:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-20 11:13:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-20 11:13:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-20 11:13:29,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 11:13:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 11:13:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt_byte [2024-11-20 11:13:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt_byte [2024-11-20 11:13:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure ap_put [2024-11-20 11:13:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_put [2024-11-20 11:13:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-20 11:13:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-20 11:13:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:13:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:13:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:13:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:13:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:13:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:13:29,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:13:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:13:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:13:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:13:29,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:13:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:13:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:13:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:13:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-20 11:13:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-20 11:13:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-20 11:13:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-20 11:13:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_hangup [2024-11-20 11:13:29,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_hangup [2024-11-20 11:13:29,984 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-20 11:13:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-20 11:13:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2024-11-20 11:13:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-20 11:13:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-20 11:13:29,985 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 11:13:29,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 11:13:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 11:13:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 11:13:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-20 11:13:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-20 11:13:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-20 11:13:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-20 11:13:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-20 11:13:29,986 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-20 11:13:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 11:13:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 11:13:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_close [2024-11-20 11:13:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_close [2024-11-20 11:13:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 11:13:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_poll [2024-11-20 11:13:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_poll [2024-11-20 11:13:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-20 11:13:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-20 11:13:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-20 11:13:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-20 11:13:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 11:13:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 11:13:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-20 11:13:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-20 11:13:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get [2024-11-20 11:13:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-20 11:13:29,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 11:13:29,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-20 11:13:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-20 11:13:29,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 11:13:29,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-20 11:13:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-20 11:13:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-20 11:13:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure async_lcp_peek [2024-11-20 11:13:29,992 INFO L138 BoogieDeclarations]: Found implementation of procedure async_lcp_peek [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 11:13:29,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-20 11:13:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-20 11:13:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-20 11:13:29,993 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-20 11:13:29,993 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-20 11:13:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 11:13:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 11:13:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_ioctl [2024-11-20 11:13:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_ioctl [2024-11-20 11:13:29,994 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2024-11-20 11:13:29,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2024-11-20 11:13:30,433 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 11:13:30,438 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 11:13:31,080 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-20 11:13:41,334 INFO L? ?]: Removed 1327 outVars from TransFormulas that were not future-live. [2024-11-20 11:13:41,335 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 11:13:41,376 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 11:13:41,377 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 11:13:41,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:41 BoogieIcfgContainer [2024-11-20 11:13:41,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 11:13:41,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 11:13:41,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 11:13:41,385 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 11:13:41,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:13:26" (1/3) ... [2024-11-20 11:13:41,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486eb10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:41, skipping insertion in model container [2024-11-20 11:13:41,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:13:29" (2/3) ... [2024-11-20 11:13:41,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@486eb10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:13:41, skipping insertion in model container [2024-11-20 11:13:41,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:13:41" (3/3) ... [2024-11-20 11:13:41,390 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-20 11:13:41,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 11:13:41,409 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 11:13:41,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 11:13:41,567 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@1778f107, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 11:13:41,568 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 11:13:41,578 INFO L276 IsEmpty]: Start isEmpty. Operand has 868 states, 710 states have (on average 1.4535211267605634) internal successors, (1032), 724 states have internal predecessors, (1032), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-20 11:13:41,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 11:13:41,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:13:41,594 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:13:41,594 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:13:41,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:13:41,601 INFO L85 PathProgramCache]: Analyzing trace with hash 777758135, now seen corresponding path program 1 times [2024-11-20 11:13:41,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:13:41,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707703376] [2024-11-20 11:13:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:13:41,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:13:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:13:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:13:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:13:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:13:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:13:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:13:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:13:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:13:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:13:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:13:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:13:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 11:13:42,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:13:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707703376] [2024-11-20 11:13:42,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707703376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:13:42,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:13:42,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:13:42,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373685956] [2024-11-20 11:13:42,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:13:42,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:13:42,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:13:42,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:13:42,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:13:42,509 INFO L87 Difference]: Start difference. First operand has 868 states, 710 states have (on average 1.4535211267605634) internal successors, (1032), 724 states have internal predecessors, (1032), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-20 11:13:46,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:13:50,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:13:56,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:01,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:01,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:14:01,469 INFO L93 Difference]: Finished difference Result 2701 states and 4030 transitions. [2024-11-20 11:14:01,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:14:01,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2024-11-20 11:14:01,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:14:01,513 INFO L225 Difference]: With dead ends: 2701 [2024-11-20 11:14:01,517 INFO L226 Difference]: Without dead ends: 1822 [2024-11-20 11:14:01,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:14:01,532 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 1735 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 292 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2024-11-20 11:14:01,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 2282 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1157 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2024-11-20 11:14:01,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2024-11-20 11:14:01,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1666. [2024-11-20 11:14:01,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1378 states have (on average 1.4339622641509433) internal successors, (1976), 1394 states have internal predecessors, (1976), 215 states have call successors, (215), 73 states have call predecessors, (215), 72 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-20 11:14:01,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2405 transitions. [2024-11-20 11:14:01,752 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2405 transitions. Word has length 78 [2024-11-20 11:14:01,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:14:01,755 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2405 transitions. [2024-11-20 11:14:01,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-20 11:14:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2405 transitions. [2024-11-20 11:14:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-20 11:14:01,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:14:01,764 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:14:01,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 11:14:01,765 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:14:01,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:14:01,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1614170695, now seen corresponding path program 1 times [2024-11-20 11:14:01,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:14:01,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064281992] [2024-11-20 11:14:01,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:14:01,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:14:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:14:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:14:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:14:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:14:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:14:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:14:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:14:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-20 11:14:02,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:14:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064281992] [2024-11-20 11:14:02,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064281992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:14:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:14:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 11:14:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025407655] [2024-11-20 11:14:02,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:14:02,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 11:14:02,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:14:02,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 11:14:02,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 11:14:02,315 INFO L87 Difference]: Start difference. First operand 1666 states and 2405 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-20 11:14:06,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:12,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:17,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:17,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:14:17,332 INFO L93 Difference]: Finished difference Result 5259 states and 7667 transitions. [2024-11-20 11:14:17,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 11:14:17,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2024-11-20 11:14:17,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:14:17,360 INFO L225 Difference]: With dead ends: 5259 [2024-11-20 11:14:17,360 INFO L226 Difference]: Without dead ends: 3609 [2024-11-20 11:14:17,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 11:14:17,368 INFO L432 NwaCegarLoop]: 921 mSDtfsCounter, 1765 mSDsluCounter, 3026 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 298 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1869 SdHoareTripleChecker+Valid, 3947 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-11-20 11:14:17,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1869 Valid, 3947 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1979 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2024-11-20 11:14:17,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2024-11-20 11:14:17,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3345. [2024-11-20 11:14:17,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 2768 states have (on average 1.435693641618497) internal successors, (3974), 2804 states have internal predecessors, (3974), 428 states have call successors, (428), 145 states have call predecessors, (428), 148 states have return successors, (465), 427 states have call predecessors, (465), 427 states have call successors, (465) [2024-11-20 11:14:17,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 4867 transitions. [2024-11-20 11:14:17,547 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 4867 transitions. Word has length 82 [2024-11-20 11:14:17,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:14:17,549 INFO L471 AbstractCegarLoop]: Abstraction has 3345 states and 4867 transitions. [2024-11-20 11:14:17,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-20 11:14:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 4867 transitions. [2024-11-20 11:14:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 11:14:17,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:14:17,564 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:14:17,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 11:14:17,565 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:14:17,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:14:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2135162811, now seen corresponding path program 1 times [2024-11-20 11:14:17,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:14:17,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766115337] [2024-11-20 11:14:17,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:14:17,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:14:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:14:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:14:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:14:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:14:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:14:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:14:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:14:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:17,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 11:14:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-20 11:14:18,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 11:14:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 11:14:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-20 11:14:18,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:14:18,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766115337] [2024-11-20 11:14:18,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766115337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:14:18,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:14:18,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 11:14:18,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911241990] [2024-11-20 11:14:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:14:18,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 11:14:18,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:14:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 11:14:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:14:18,115 INFO L87 Difference]: Start difference. First operand 3345 states and 4867 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 11:14:22,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:26,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:30,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:34,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:42,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:46,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:46,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:14:46,479 INFO L93 Difference]: Finished difference Result 9396 states and 13780 transitions. [2024-11-20 11:14:46,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 11:14:46,481 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-20 11:14:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:14:46,516 INFO L225 Difference]: With dead ends: 9396 [2024-11-20 11:14:46,516 INFO L226 Difference]: Without dead ends: 6075 [2024-11-20 11:14:46,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 11:14:46,533 INFO L432 NwaCegarLoop]: 749 mSDtfsCounter, 3290 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 906 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3368 SdHoareTripleChecker+Valid, 3005 SdHoareTripleChecker+Invalid, 3168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 906 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2024-11-20 11:14:46,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3368 Valid, 3005 Invalid, 3168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [906 Valid, 2256 Invalid, 6 Unknown, 0 Unchecked, 27.9s Time] [2024-11-20 11:14:46,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2024-11-20 11:14:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 5469. [2024-11-20 11:14:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5469 states, 4548 states have (on average 1.4443711521547933) internal successors, (6569), 4607 states have internal predecessors, (6569), 681 states have call successors, (681), 220 states have call predecessors, (681), 239 states have return successors, (770), 687 states have call predecessors, (770), 680 states have call successors, (770) [2024-11-20 11:14:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 8020 transitions. [2024-11-20 11:14:46,802 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 8020 transitions. Word has length 140 [2024-11-20 11:14:46,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:14:46,804 INFO L471 AbstractCegarLoop]: Abstraction has 5469 states and 8020 transitions. [2024-11-20 11:14:46,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-20 11:14:46,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 8020 transitions. [2024-11-20 11:14:46,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-20 11:14:46,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:14:46,816 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:14:46,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 11:14:46,817 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:14:46,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:14:46,817 INFO L85 PathProgramCache]: Analyzing trace with hash -621933258, now seen corresponding path program 1 times [2024-11-20 11:14:46,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:14:46,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065214421] [2024-11-20 11:14:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:14:46,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:14:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:14:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:14:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:14:47,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:14:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:14:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 11:14:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 11:14:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 11:14:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 11:14:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-20 11:14:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 11:14:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 11:14:47,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 11:14:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-20 11:14:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-20 11:14:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 11:14:47,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-20 11:14:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-20 11:14:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 11:14:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-20 11:14:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:14:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-20 11:14:47,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:14:47,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065214421] [2024-11-20 11:14:47,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065214421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:14:47,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:14:47,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 11:14:47,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145121148] [2024-11-20 11:14:47,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:14:47,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 11:14:47,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:14:47,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 11:14:47,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 11:14:47,322 INFO L87 Difference]: Start difference. First operand 5469 states and 8020 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-20 11:14:51,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:14:55,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []