./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.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 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 21:00:52,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 21:00:52,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 21:00:52,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 21:00:52,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 21:00:52,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 21:00:52,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 21:00:52,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 21:00:52,613 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 21:00:52,614 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 21:00:52,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 21:00:52,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 21:00:52,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 21:00:52,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 21:00:52,617 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 21:00:52,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 21:00:52,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 21:00:52,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 21:00:52,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 21:00:52,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 21:00:52,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 21:00:52,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 21:00:52,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 21:00:52,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 21:00:52,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 21:00:52,629 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 21:00:52,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 21:00:52,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 21:00:52,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 21:00:52,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 21:00:52,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 21:00:52,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 21:00:52,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 21:00:52,631 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 21:00:52,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 21:00:52,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 21:00:52,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 21:00:52,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 21:00:52,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 21:00:52,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2024-11-16 21:00:52,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 21:00:52,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 21:00:52,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 21:00:52,927 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 21:00:52,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 21:00:52,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-16 21:00:54,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 21:00:54,671 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 21:00:54,672 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_synctty.ko-entry_point.cil.out.i [2024-11-16 21:00:54,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9922c98/70699fefb67f4019936a6f77875fdd20/FLAG9286c414f [2024-11-16 21:00:54,726 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9922c98/70699fefb67f4019936a6f77875fdd20 [2024-11-16 21:00:54,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 21:00:54,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 21:00:54,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 21:00:54,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 21:00:54,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 21:00:54,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:00:54" (1/1) ... [2024-11-16 21:00:54,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c91b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:54, skipping insertion in model container [2024-11-16 21:00:54,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:00:54" (1/1) ... [2024-11-16 21:00:54,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 21:00:55,574 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_synctty.ko-entry_point.cil.out.i[163507,163520] [2024-11-16 21:00:55,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 21:00:55,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 21:00:55,929 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"); [5277] [2024-11-16 21:00:55,932 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)); [5284] [2024-11-16 21:00:55,932 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"); [5292-5293] [2024-11-16 21:00:55,933 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"); [5301-5302] [2024-11-16 21:00:55,936 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)); [5349] [2024-11-16 21:00:55,938 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"); [5357-5358] [2024-11-16 21:00:55,960 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_synctty.ko-entry_point.cil.out.i[163507,163520] [2024-11-16 21:00:55,977 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"); [5939] [2024-11-16 21:00:55,978 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"); [5942] [2024-11-16 21:00:55,978 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"); [5945] [2024-11-16 21:00:55,979 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"); [5948] [2024-11-16 21:00:55,979 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"); [5951] [2024-11-16 21:00:55,979 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"); [5967-5968] [2024-11-16 21:00:55,980 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"); [5971-5972] [2024-11-16 21:00:55,980 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"); [5975-5976] [2024-11-16 21:00:55,980 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"); [5979-5980] [2024-11-16 21:00:55,981 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"); [5983-5984] [2024-11-16 21:00:55,982 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"); [6007-6008] [2024-11-16 21:00:55,982 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"); [6011-6012] [2024-11-16 21:00:55,982 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"); [6015-6016] [2024-11-16 21:00:55,982 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"); [6019-6020] [2024-11-16 21:00:55,983 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"); [6023-6024] [2024-11-16 21:00:55,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6152] [2024-11-16 21:00:55,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6155] [2024-11-16 21:00:55,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6158] [2024-11-16 21:00:55,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6161] [2024-11-16 21:00:55,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6164] [2024-11-16 21:00:55,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)argp), "i" (4UL)); [6176-6177] [2024-11-16 21:00:55,991 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"); [6194-6195] [2024-11-16 21:00:55,992 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"); [6198-6199] [2024-11-16 21:00:55,992 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"); [6202-6203] [2024-11-16 21:00:55,992 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"); [6206-6207] [2024-11-16 21:00:55,992 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"); [6210-6211] [2024-11-16 21:00:55,993 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" (p), "i" (4UL)); [6223-6224] [2024-11-16 21:00:55,993 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"); [6237-6238] [2024-11-16 21:00:55,994 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"); [6241-6242] [2024-11-16 21:00:55,994 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"); [6245-6246] [2024-11-16 21:00:55,994 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"); [6249-6250] [2024-11-16 21:00:55,995 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"); [6253-6254] [2024-11-16 21:00:55,995 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" (p), "i" (4UL)); [6266-6267] [2024-11-16 21:00:55,997 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" ((int *)argp): "ebx"); [6304-6305] [2024-11-16 21:00:55,997 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" ((int *)argp): "ebx"); [6308-6309] [2024-11-16 21:00:55,997 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" ((int *)argp): "ebx"); [6312-6313] [2024-11-16 21:00:55,997 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" ((int *)argp): "ebx"); [6316-6317] [2024-11-16 21:00:55,998 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" ((int *)argp): "ebx"); [6320-6321] [2024-11-16 21:00:55,998 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" ((int *)argp), "i" (4UL)); [6333-6334] [2024-11-16 21:00:56,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 21:00:56,101 INFO L204 MainTranslator]: Completed translation [2024-11-16 21:00:56,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56 WrapperNode [2024-11-16 21:00:56,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 21:00:56,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 21:00:56,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 21:00:56,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 21:00:56,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,291 INFO L138 Inliner]: procedures = 176, calls = 475, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1979 [2024-11-16 21:00:56,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 21:00:56,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 21:00:56,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 21:00:56,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 21:00:56,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,497 INFO L175 MemorySlicer]: Split 190 memory accesses to 9 slices as follows [7, 2, 20, 1, 24, 2, 1, 120, 13]. 63 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [0, 2, 15, 1, 0, 2, 1, 10, 0]. The 86 writes are split as follows [6, 0, 2, 0, 24, 0, 0, 41, 13]. [2024-11-16 21:00:56,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,540 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 21:00:56,582 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 21:00:56,582 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 21:00:56,582 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 21:00:56,583 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (1/1) ... [2024-11-16 21:00:56,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 21:00:56,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 21:00:56,611 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) [2024-11-16 21:00:56,613 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 [2024-11-16 21:00:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-16 21:00:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-16 21:00:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2024-11-16 21:00:56,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2024-11-16 21:00:56,645 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2024-11-16 21:00:56,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-16 21:00:56,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-16 21:00:56,647 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-16 21:00:56,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-16 21:00:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-16 21:00:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-16 21:00:56,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-16 21:00:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-16 21:00:56,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-16 21:00:56,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-16 21:00:56,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-16 21:00:56,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-16 21:00:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-16 21:00:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-16 21:00:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2024-11-16 21:00:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2024-11-16 21:00:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-16 21:00:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-16 21:00:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-16 21:00:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-16 21:00:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-16 21:00:56,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-16 21:00:56,652 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2024-11-16 21:00:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-16 21:00:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-16 21:00:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 21:00:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-16 21:00:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-16 21:00:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-16 21:00:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-16 21:00:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 21:00:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-16 21:00:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-16 21:00:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2024-11-16 21:00:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 21:00:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-16 21:00:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2024-11-16 21:00:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-16 21:00:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-16 21:00:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-16 21:00:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-16 21:00:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-16 21:00:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-16 21:00:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2024-11-16 21:00:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2024-11-16 21:00:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-16 21:00:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-16 21:00:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-16 21:00:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-16 21:00:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-16 21:00:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-16 21:00:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-16 21:00:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 21:00:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 21:00:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2024-11-16 21:00:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2024-11-16 21:00:57,036 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 21:00:57,038 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 21:00:57,115 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-16 21:00:57,122 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7330: havoc #t~ret338.base, #t~ret338.offset; [2024-11-16 21:00:57,160 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7268: havoc _raw_spin_trylock_bh_#t~nondet331#1; [2024-11-16 21:00:57,185 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5309: havoc #t~mem1;havoc #t~bitwise2; [2024-11-16 21:00:57,342 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7354: havoc tty_mode_ioctl_#t~nondet342#1; [2024-11-16 21:00:57,342 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7297: havoc ppp_channel_index_#t~nondet333#1; [2024-11-16 21:00:57,342 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7314: havoc ppp_unit_number_#t~nondet335#1; [2024-11-16 21:00:57,342 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7293: havoc n_tty_ioctl_helper_#t~nondet332#1; [2024-11-16 21:00:57,350 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7327: havoc #t~ret337.base, #t~ret337.offset; [2024-11-16 21:00:57,417 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5754: call ULTIMATE.dealloc(~#descriptor~0#1.base, ~#descriptor~0#1.offset);havoc ~#descriptor~0#1.base, ~#descriptor~0#1.offset; [2024-11-16 21:00:57,607 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7248: havoc #t~nondet329; [2024-11-16 21:00:57,634 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7324: havoc #t~nondet336; [2024-11-16 21:00:57,662 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7244: havoc #t~nondet328; [2024-11-16 21:01:02,200 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6117: call ULTIMATE.dealloc(ppp_sync_ioctl_~#accm~0#1.base, ppp_sync_ioctl_~#accm~0#1.offset);havoc ppp_sync_ioctl_~#accm~0#1.base, ppp_sync_ioctl_~#accm~0#1.offset; [2024-11-16 21:01:02,200 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5556: havoc skb_is_nonlinear_#t~mem68#1; [2024-11-16 21:01:02,200 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5426: call ULTIMATE.dealloc(init_completion_~#__key~0#1.base, init_completion_~#__key~0#1.offset);havoc init_completion_~#__key~0#1.base, init_completion_~#__key~0#1.offset; [2024-11-16 21:01:02,200 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7310: havoc ppp_register_channel_#t~nondet334#1; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5527: havoc skb_queue_empty_#t~mem63#1.base, skb_queue_empty_#t~mem63#1.offset; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5565: havoc skb_headroom_#t~mem75#1.base, skb_headroom_#t~mem75#1.offset;havoc skb_headroom_#t~mem76#1.base, skb_headroom_#t~mem76#1.offset; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5440: havoc __kmalloc_#t~ret43#1.base, __kmalloc_#t~ret43#1.offset; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5573: havoc skb_tailroom_#t~ite80#1;havoc skb_tailroom_#t~mem78#1;havoc skb_tailroom_#t~mem79#1; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7358: havoc tty_register_ldisc_#t~nondet343#1; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5543: call ULTIMATE.dealloc(skb_queue_head_init_~#__key~1#1.base, skb_queue_head_init_~#__key~1#1.offset);havoc skb_queue_head_init_~#__key~1#1.base, skb_queue_head_init_~#__key~1#1.offset; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5809: call ULTIMATE.dealloc(ppp_sync_open_~#__key~2#1.base, ppp_sync_open_~#__key~2#1.offset);havoc ppp_sync_open_~#__key~2#1.base, ppp_sync_open_~#__key~2#1.offset;call ULTIMATE.dealloc(ppp_sync_open_~#__key___0~0#1.base, ppp_sync_open_~#__key___0~0#1.offset);havoc ppp_sync_open_~#__key___0~0#1.base, ppp_sync_open_~#__key___0~0#1.offset; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7362: havoc tty_termios_baud_rate_#t~nondet344#1; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5315: havoc __fswab16_#t~bitwise3#1; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7264: havoc _raw_spin_lock_irqsave_#t~nondet330#1; [2024-11-16 21:01:02,201 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L7366: havoc tty_unregister_ldisc_#t~nondet345#1; [2024-11-16 21:01:02,493 INFO L? ?]: Removed 1116 outVars from TransFormulas that were not future-live. [2024-11-16 21:01:02,493 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 21:01:02,539 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 21:01:02,539 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-16 21:01:02,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:01:02 BoogieIcfgContainer [2024-11-16 21:01:02,540 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 21:01:02,544 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 21:01:02,544 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 21:01:02,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 21:01:02,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:00:54" (1/3) ... [2024-11-16 21:01:02,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449d0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:01:02, skipping insertion in model container [2024-11-16 21:01:02,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:00:56" (2/3) ... [2024-11-16 21:01:02,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@449d0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:01:02, skipping insertion in model container [2024-11-16 21:01:02,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:01:02" (3/3) ... [2024-11-16 21:01:02,552 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-16 21:01:02,583 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 21:01:02,584 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 21:01:02,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 21:01:02,673 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;@38b0b60e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 21:01:02,674 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 21:01:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 715 states, 549 states have (on average 1.3825136612021858) internal successors, (759), 564 states have internal predecessors, (759), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-16 21:01:02,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 21:01:02,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:02,697 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] [2024-11-16 21:01:02,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:02,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash -737505939, now seen corresponding path program 1 times [2024-11-16 21:01:02,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:02,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783964332] [2024-11-16 21:01:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:02,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 21:01:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 21:01:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 21:01:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 21:01:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 21:01:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-16 21:01:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783964332] [2024-11-16 21:01:03,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783964332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:03,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:03,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 21:01:03,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671194566] [2024-11-16 21:01:03,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:03,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 21:01:03,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:03,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 21:01:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 21:01:03,642 INFO L87 Difference]: Start difference. First operand has 715 states, 549 states have (on average 1.3825136612021858) internal successors, (759), 564 states have internal predecessors, (759), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-16 21:01:07,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:11,688 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 [] [2024-11-16 21:01:13,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:01:13,322 INFO L93 Difference]: Finished difference Result 2229 states and 3242 transitions. [2024-11-16 21:01:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 21:01:13,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 79 [2024-11-16 21:01:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:01:13,355 INFO L225 Difference]: With dead ends: 2229 [2024-11-16 21:01:13,355 INFO L226 Difference]: Without dead ends: 1503 [2024-11-16 21:01:13,363 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 [2024-11-16 21:01:13,365 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 1367 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 316 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-16 21:01:13,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1777 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 912 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2024-11-16 21:01:13,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2024-11-16 21:01:13,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1359. [2024-11-16 21:01:13,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1055 states have (on average 1.3639810426540284) internal successors, (1439), 1073 states have internal predecessors, (1439), 225 states have call successors, (225), 79 states have call predecessors, (225), 78 states have return successors, (224), 220 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-16 21:01:13,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1888 transitions. [2024-11-16 21:01:13,478 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1888 transitions. Word has length 79 [2024-11-16 21:01:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:01:13,479 INFO L471 AbstractCegarLoop]: Abstraction has 1359 states and 1888 transitions. [2024-11-16 21:01:13,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2024-11-16 21:01:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1888 transitions. [2024-11-16 21:01:13,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-16 21:01:13,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:13,483 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, 1] [2024-11-16 21:01:13,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 21:01:13,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:13,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:13,484 INFO L85 PathProgramCache]: Analyzing trace with hash -113997401, now seen corresponding path program 1 times [2024-11-16 21:01:13,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:13,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895487105] [2024-11-16 21:01:13,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:13,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 21:01:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 21:01:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 21:01:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 21:01:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 21:01:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-16 21:01:13,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:13,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895487105] [2024-11-16 21:01:13,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895487105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:13,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:13,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 21:01:13,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240919412] [2024-11-16 21:01:13,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:13,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 21:01:13,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:13,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 21:01:13,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 21:01:13,832 INFO L87 Difference]: Start difference. First operand 1359 states and 1888 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-16 21:01:17,846 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 [] [2024-11-16 21:01:19,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:01:19,870 INFO L93 Difference]: Finished difference Result 4313 states and 6105 transitions. [2024-11-16 21:01:19,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 21:01:19,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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 83 [2024-11-16 21:01:19,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:01:19,887 INFO L225 Difference]: With dead ends: 4313 [2024-11-16 21:01:19,889 INFO L226 Difference]: Without dead ends: 2970 [2024-11-16 21:01:19,893 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 [2024-11-16 21:01:19,895 INFO L432 NwaCegarLoop]: 789 mSDtfsCounter, 1394 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 308 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 21:01:19,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 3274 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 1699 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 21:01:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2024-11-16 21:01:20,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2754. [2024-11-16 21:01:20,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2139 states have (on average 1.3655913978494623) internal successors, (2921), 2181 states have internal predecessors, (2921), 454 states have call successors, (454), 157 states have call predecessors, (454), 160 states have return successors, (499), 445 states have call predecessors, (499), 453 states have call successors, (499) [2024-11-16 21:01:20,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3874 transitions. [2024-11-16 21:01:20,018 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3874 transitions. Word has length 83 [2024-11-16 21:01:20,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:01:20,022 INFO L471 AbstractCegarLoop]: Abstraction has 2754 states and 3874 transitions. [2024-11-16 21:01:20,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 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) [2024-11-16 21:01:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3874 transitions. [2024-11-16 21:01:20,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-16 21:01:20,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:20,032 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-16 21:01:20,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 21:01:20,033 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:20,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash 800053588, now seen corresponding path program 1 times [2024-11-16 21:01:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:20,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527936848] [2024-11-16 21:01:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:20,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 21:01:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 21:01:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 21:01:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 21:01:20,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 21:01:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 21:01:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 21:01:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 21:01:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:20,555 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-16 21:01:20,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:20,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527936848] [2024-11-16 21:01:20,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527936848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:20,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:20,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 21:01:20,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233766735] [2024-11-16 21:01:20,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:20,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 21:01:20,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:20,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 21:01:20,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 21:01:20,557 INFO L87 Difference]: Start difference. First operand 2754 states and 3874 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 21:01:24,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:28,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:32,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:36,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:01:38,766 INFO L93 Difference]: Finished difference Result 7756 states and 10963 transitions. [2024-11-16 21:01:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 21:01:38,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2024-11-16 21:01:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:01:38,790 INFO L225 Difference]: With dead ends: 7756 [2024-11-16 21:01:38,790 INFO L226 Difference]: Without dead ends: 5026 [2024-11-16 21:01:38,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-16 21:01:38,802 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 2396 mSDsluCounter, 1458 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 1052 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2483 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 2383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1052 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-16 21:01:38,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2483 Valid, 2128 Invalid, 2383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1052 Valid, 1327 Invalid, 4 Unknown, 0 Unchecked, 17.9s Time] [2024-11-16 21:01:38,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5026 states. [2024-11-16 21:01:39,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5026 to 4413. [2024-11-16 21:01:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 3433 states have (on average 1.3626565685988932) internal successors, (4678), 3490 states have internal predecessors, (4678), 697 states have call successors, (697), 257 states have call predecessors, (697), 282 states have return successors, (816), 699 states have call predecessors, (816), 696 states have call successors, (816) [2024-11-16 21:01:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 6191 transitions. [2024-11-16 21:01:39,032 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 6191 transitions. Word has length 133 [2024-11-16 21:01:39,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:01:39,033 INFO L471 AbstractCegarLoop]: Abstraction has 4413 states and 6191 transitions. [2024-11-16 21:01:39,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-16 21:01:39,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 6191 transitions. [2024-11-16 21:01:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-16 21:01:39,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:39,041 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1] [2024-11-16 21:01:39,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 21:01:39,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:39,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 216883622, now seen corresponding path program 1 times [2024-11-16 21:01:39,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261332736] [2024-11-16 21:01:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:39,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 21:01:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 21:01:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 21:01:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 21:01:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 21:01:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-16 21:01:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-16 21:01:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-16 21:01:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-16 21:01:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-16 21:01:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-16 21:01:39,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:39,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261332736] [2024-11-16 21:01:39,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261332736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:39,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:39,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 21:01:39,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241755889] [2024-11-16 21:01:39,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:39,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 21:01:39,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:39,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 21:01:39,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 21:01:39,465 INFO L87 Difference]: Start difference. First operand 4413 states and 6191 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 21:01:43,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:47,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:01:51,482 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 [] [2024-11-16 21:01:54,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:01:54,188 INFO L93 Difference]: Finished difference Result 11357 states and 15872 transitions. [2024-11-16 21:01:54,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 21:01:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-16 21:01:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:01:54,226 INFO L225 Difference]: With dead ends: 11357 [2024-11-16 21:01:54,227 INFO L226 Difference]: Without dead ends: 6968 [2024-11-16 21:01:54,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-16 21:01:54,242 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 1538 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 1592 mSolverCounterSat, 612 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 1592 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-16 21:01:54,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 2713 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 1592 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2024-11-16 21:01:54,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6968 states. [2024-11-16 21:01:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6968 to 6201. [2024-11-16 21:01:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 4801 states have (on average 1.3495105186419496) internal successors, (6479), 4898 states have internal predecessors, (6479), 962 states have call successors, (962), 398 states have call predecessors, (962), 437 states have return successors, (1129), 964 states have call predecessors, (1129), 961 states have call successors, (1129) [2024-11-16 21:01:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 8570 transitions. [2024-11-16 21:01:54,554 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 8570 transitions. Word has length 154 [2024-11-16 21:01:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:01:54,555 INFO L471 AbstractCegarLoop]: Abstraction has 6201 states and 8570 transitions. [2024-11-16 21:01:54,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 21:01:54,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 8570 transitions. [2024-11-16 21:01:54,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-16 21:01:54,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:01:54,565 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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] [2024-11-16 21:01:54,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 21:01:54,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:01:54,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:01:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1847615190, now seen corresponding path program 1 times [2024-11-16 21:01:54,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:01:54,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879282457] [2024-11-16 21:01:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:01:54,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:01:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:01:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:01:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 21:01:54,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 21:01:54,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:01:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:01:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 21:01:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 21:01:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 21:01:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 21:01:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 21:01:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-16 21:01:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 21:01:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:01:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:01:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 21:01:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:01:54,878 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-16 21:01:54,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:01:54,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879282457] [2024-11-16 21:01:54,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879282457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:01:54,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:01:54,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 21:01:54,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407520707] [2024-11-16 21:01:54,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:01:54,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 21:01:54,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:01:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 21:01:54,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 21:01:54,880 INFO L87 Difference]: Start difference. First operand 6201 states and 8570 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 21:01:58,887 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 [] [2024-11-16 21:02:02,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:06,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:10,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:14,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:17,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 21:02:17,394 INFO L93 Difference]: Finished difference Result 16617 states and 23012 transitions. [2024-11-16 21:02:17,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 21:02:17,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 158 [2024-11-16 21:02:17,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 21:02:17,433 INFO L225 Difference]: With dead ends: 16617 [2024-11-16 21:02:17,433 INFO L226 Difference]: Without dead ends: 10451 [2024-11-16 21:02:17,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-16 21:02:17,446 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 2464 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 902 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2544 SdHoareTripleChecker+Valid, 2141 SdHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 902 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-16 21:02:17,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2544 Valid, 2141 Invalid, 2543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [902 Valid, 1636 Invalid, 5 Unknown, 0 Unchecked, 22.0s Time] [2024-11-16 21:02:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10451 states. [2024-11-16 21:02:17,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10451 to 9222. [2024-11-16 21:02:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9222 states, 7213 states have (on average 1.348398724525163) internal successors, (9726), 7345 states have internal predecessors, (9726), 1335 states have call successors, (1335), 608 states have call predecessors, (1335), 673 states have return successors, (1570), 1352 states have call predecessors, (1570), 1334 states have call successors, (1570) [2024-11-16 21:02:17,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9222 states to 9222 states and 12631 transitions. [2024-11-16 21:02:17,841 INFO L78 Accepts]: Start accepts. Automaton has 9222 states and 12631 transitions. Word has length 158 [2024-11-16 21:02:17,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 21:02:17,843 INFO L471 AbstractCegarLoop]: Abstraction has 9222 states and 12631 transitions. [2024-11-16 21:02:17,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-16 21:02:17,843 INFO L276 IsEmpty]: Start isEmpty. Operand 9222 states and 12631 transitions. [2024-11-16 21:02:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-16 21:02:17,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 21:02:17,853 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 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, 1] [2024-11-16 21:02:17,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 21:02:17,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 21:02:17,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 21:02:17,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1471450078, now seen corresponding path program 1 times [2024-11-16 21:02:17,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 21:02:17,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927742938] [2024-11-16 21:02:17,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 21:02:17,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 21:02:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-16 21:02:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 21:02:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:02:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-16 21:02:18,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 21:02:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-16 21:02:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-16 21:02:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 21:02:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 21:02:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 21:02:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-16 21:02:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-16 21:02:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 21:02:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:02:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-16 21:02:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-16 21:02:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-16 21:02:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-16 21:02:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 21:02:18,164 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-16 21:02:18,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 21:02:18,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927742938] [2024-11-16 21:02:18,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927742938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 21:02:18,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 21:02:18,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 21:02:18,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300362161] [2024-11-16 21:02:18,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 21:02:18,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 21:02:18,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 21:02:18,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 21:02:18,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 21:02:18,170 INFO L87 Difference]: Start difference. First operand 9222 states and 12631 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-16 21:02:22,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:26,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-16 21:02:30,189 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 []