./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_async.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_async.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:20:17,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:20:17,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:20:17,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:20:17,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:20:17,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:20:17,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:20:17,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:20:17,467 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:20:17,467 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:20:17,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:20:17,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:20:17,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:20:17,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:20:17,472 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:20:17,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:20:17,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:20:17,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:20:17,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:20:17,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:20:17,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:20:17,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:20:17,474 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:20:17,474 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:20:17,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:20:17,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:20:17,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:20:17,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:20:17,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:20:17,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:20:17,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:20:17,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:20:17,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:20:17,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:20:17,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:20:17,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:20:17,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:20:17,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:20:17,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:20:17,479 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b [2024-11-19 03:20:17,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:20:17,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:20:17,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:20:17,720 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:20:17,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:20:17,721 INFO L431 ainManager$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_async.ko-entry_point.cil.out.i [2024-11-19 03:20:18,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:20:19,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:20:19,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-19 03:20:19,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ff8bb34/039ec5d708e74b649b8eb58bbea9b81a/FLAGda6d90aa5 [2024-11-19 03:20:19,409 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14ff8bb34/039ec5d708e74b649b8eb58bbea9b81a [2024-11-19 03:20:19,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:20:19,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:20:19,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:20:19,417 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:20:19,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:20:19,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:19" (1/1) ... [2024-11-19 03:20:19,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65aa77b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:19, skipping insertion in model container [2024-11-19 03:20:19,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:20:19" (1/1) ... [2024-11-19 03:20:19,534 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:20:20,213 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-19 03:20:20,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:20:20,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:20:20,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5282] [2024-11-19 03:20:20,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5289] [2024-11-19 03:20:20,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5297-5298] [2024-11-19 03:20:20,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5306-5307] [2024-11-19 03:20:20,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5320] [2024-11-19 03:20:20,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5383] [2024-11-19 03:20:20,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5391-5392] [2024-11-19 03:20:20,659 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-19 03:20:20,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5963] [2024-11-19 03:20:20,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5966] [2024-11-19 03:20:20,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5969] [2024-11-19 03:20:20,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5972] [2024-11-19 03:20:20,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5975] [2024-11-19 03:20:20,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5991-5992] [2024-11-19 03:20:20,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5995-5996] [2024-11-19 03:20:20,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5999-6000] [2024-11-19 03:20:20,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6003-6004] [2024-11-19 03:20:20,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6007-6008] [2024-11-19 03:20:20,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6031-6032] [2024-11-19 03:20:20,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6035-6036] [2024-11-19 03:20:20,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6039-6040] [2024-11-19 03:20:20,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6043-6044] [2024-11-19 03:20:20,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6047-6048] [2024-11-19 03:20:20,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6176] [2024-11-19 03:20:20,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6179] [2024-11-19 03:20:20,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6182] [2024-11-19 03:20:20,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6185] [2024-11-19 03:20:20,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6188] [2024-11-19 03:20:20,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [6200-6201] [2024-11-19 03:20:20,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6218-6219] [2024-11-19 03:20:20,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6222-6223] [2024-11-19 03:20:20,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6226-6227] [2024-11-19 03:20:20,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6230-6231] [2024-11-19 03:20:20,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6234-6235] [2024-11-19 03:20:20,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" ((u32 *)argp), "i" (4UL)); [6247-6248] [2024-11-19 03:20:20,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6261-6262] [2024-11-19 03:20:20,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6265-6266] [2024-11-19 03:20:20,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6269-6270] [2024-11-19 03:20:20,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6273-6274] [2024-11-19 03:20:20,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6277-6278] [2024-11-19 03:20:20,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" ((u32 *)argp), "i" (4UL)); [6290-6291] [2024-11-19 03:20:20,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6328-6329] [2024-11-19 03:20:20,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6332-6333] [2024-11-19 03:20:20,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6336-6337] [2024-11-19 03:20:20,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6340-6341] [2024-11-19 03:20:20,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6344-6345] [2024-11-19 03:20:20,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" (p), "i" (4UL)); [6357-6358] [2024-11-19 03:20:20,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:20:20,798 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:20:20,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20 WrapperNode [2024-11-19 03:20:20,799 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:20:20,800 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:20:20,800 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:20:20,800 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:20:20,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:20,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,029 INFO L138 Inliner]: procedures = 180, calls = 596, calls flagged for inlining = 99, calls inlined = 93, statements flattened = 2743 [2024-11-19 03:20:21,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:20:21,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:20:21,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:20:21,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:20:21,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,239 INFO L175 MemorySlicer]: Split 317 memory accesses to 7 slices as follows [2, 28, 20, 229, 1, 13, 24]. 72 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 15, 6, 0, 0, 0]. The 152 writes are split as follows [0, 13, 2, 100, 0, 13, 24]. [2024-11-19 03:20:21,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:20:21,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:20:21,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:20:21,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:20:21,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (1/1) ... [2024-11-19 03:20:21,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:20:21,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:20:21,380 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) [2024-11-19 03:20:21,386 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 [2024-11-19 03:20:21,436 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-19 03:20:21,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-19 03:20:21,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:20:21,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_push [2024-11-19 03:20:21,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_push [2024-11-19 03:20:21,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-19 03:20:21,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:20:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:20:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:20:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt_byte [2024-11-19 03:20:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt_byte [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure ap_put [2024-11-19 03:20:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_put [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-19 03:20:21,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:20:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:20:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:20:21,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:20:21,442 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:20:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-19 03:20:21,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-19 03:20:21,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:20:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:20:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_hangup [2024-11-19 03:20:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_hangup [2024-11-19 03:20:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-19 03:20:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-19 03:20:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-19 03:20:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-19 03:20:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2024-11-19 03:20:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2024-11-19 03:20:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-19 03:20:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-19 03:20:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:20:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:20:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:20:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:20:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:20:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:20:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:20:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-19 03:20:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-19 03:20:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:20:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:20:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_close [2024-11-19 03:20:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_close [2024-11-19 03:20:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:20:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_poll [2024-11-19 03:20:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_poll [2024-11-19 03:20:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-19 03:20:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-19 03:20:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-19 03:20:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-19 03:20:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:20:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:20:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:20:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:20:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:20:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:20:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:20:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:20:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:20:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-19 03:20:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get [2024-11-19 03:20:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-19 03:20:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-19 03:20:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-19 03:20:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 03:20:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-19 03:20:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 03:20:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-19 03:20:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure async_lcp_peek [2024-11-19 03:20:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure async_lcp_peek [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-19 03:20:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-19 03:20:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:20:21,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:20:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-19 03:20:21,452 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-19 03:20:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:20:21,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:20:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_ioctl [2024-11-19 03:20:21,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_ioctl [2024-11-19 03:20:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2024-11-19 03:20:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2024-11-19 03:20:21,834 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:20:21,836 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:20:22,250 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:20:31,850 INFO L? ?]: Removed 1327 outVars from TransFormulas that were not future-live. [2024-11-19 03:20:31,850 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:20:31,885 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:20:31,886 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 03:20:31,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:31 BoogieIcfgContainer [2024-11-19 03:20:31,886 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:20:31,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:20:31,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:20:31,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:20:31,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:20:19" (1/3) ... [2024-11-19 03:20:31,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2113108a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:20:31, skipping insertion in model container [2024-11-19 03:20:31,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:20:20" (2/3) ... [2024-11-19 03:20:31,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2113108a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:20:31, skipping insertion in model container [2024-11-19 03:20:31,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:20:31" (3/3) ... [2024-11-19 03:20:31,894 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-19 03:20:31,914 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:20:31,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:20:31,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:20:31,992 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;@4e9bf330, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:20:31,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:20:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 868 states, 710 states have (on average 1.4535211267605634) internal successors, (1032), 724 states have internal predecessors, (1032), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-19 03:20:32,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 03:20:32,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:32,012 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:32,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:32,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 777758135, now seen corresponding path program 1 times [2024-11-19 03:20:32,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:32,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175338660] [2024-11-19 03:20:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:32,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:32,667 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-19 03:20:32,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:32,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175338660] [2024-11-19 03:20:32,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175338660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:32,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:32,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:32,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297029826] [2024-11-19 03:20:32,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:32,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:32,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:32,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:32,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:32,707 INFO L87 Difference]: Start difference. First operand has 868 states, 710 states have (on average 1.4535211267605634) internal successors, (1032), 724 states have internal predecessors, (1032), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-19 03:20:36,733 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 [] [2024-11-19 03:20:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:36,926 INFO L93 Difference]: Finished difference Result 2545 states and 3776 transitions. [2024-11-19 03:20:36,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:36,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2024-11-19 03:20:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:36,958 INFO L225 Difference]: With dead ends: 2545 [2024-11-19 03:20:36,958 INFO L226 Difference]: Without dead ends: 1666 [2024-11-19 03:20:36,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:36,973 INFO L432 NwaCegarLoop]: 1257 mSDtfsCounter, 1181 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:36,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 2486 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:20:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-11-19 03:20:37,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1666. [2024-11-19 03:20:37,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 1378 states have (on average 1.4339622641509433) internal successors, (1976), 1394 states have internal predecessors, (1976), 215 states have call successors, (215), 73 states have call predecessors, (215), 72 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-19 03:20:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2405 transitions. [2024-11-19 03:20:37,132 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2405 transitions. Word has length 78 [2024-11-19 03:20:37,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:37,134 INFO L471 AbstractCegarLoop]: Abstraction has 1666 states and 2405 transitions. [2024-11-19 03:20:37,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-19 03:20:37,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2405 transitions. [2024-11-19 03:20:37,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-19 03:20:37,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:37,141 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:37,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:20:37,142 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:37,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:37,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1614170695, now seen corresponding path program 1 times [2024-11-19 03:20:37,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:37,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782580863] [2024-11-19 03:20:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-19 03:20:37,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:37,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782580863] [2024-11-19 03:20:37,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782580863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:37,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:37,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:20:37,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94470112] [2024-11-19 03:20:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:37,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:20:37,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:37,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:20:37,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:20:37,565 INFO L87 Difference]: Start difference. First operand 1666 states and 2405 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-19 03:20:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:37,765 INFO L93 Difference]: Finished difference Result 4947 states and 7177 transitions. [2024-11-19 03:20:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:20:37,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2024-11-19 03:20:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:37,786 INFO L225 Difference]: With dead ends: 4947 [2024-11-19 03:20:37,786 INFO L226 Difference]: Without dead ends: 3297 [2024-11-19 03:20:37,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:20:37,795 INFO L432 NwaCegarLoop]: 1233 mSDtfsCounter, 1213 mSDsluCounter, 3661 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:37,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 4894 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:20:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2024-11-19 03:20:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 3289. [2024-11-19 03:20:37,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 2726 states have (on average 1.4358033749082906) internal successors, (3914), 2758 states have internal predecessors, (3914), 418 states have call successors, (418), 145 states have call predecessors, (418), 144 states have return successors, (447), 417 states have call predecessors, (447), 417 states have call successors, (447) [2024-11-19 03:20:37,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 4779 transitions. [2024-11-19 03:20:37,903 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 4779 transitions. Word has length 82 [2024-11-19 03:20:37,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:37,904 INFO L471 AbstractCegarLoop]: Abstraction has 3289 states and 4779 transitions. [2024-11-19 03:20:37,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-19 03:20:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 4779 transitions. [2024-11-19 03:20:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 03:20:37,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:37,918 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:37,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:20:37,918 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:37,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:37,920 INFO L85 PathProgramCache]: Analyzing trace with hash 2135162811, now seen corresponding path program 1 times [2024-11-19 03:20:37,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:37,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238789187] [2024-11-19 03:20:37,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:38,181 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-19 03:20:38,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:38,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238789187] [2024-11-19 03:20:38,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238789187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:38,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:38,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:38,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816197647] [2024-11-19 03:20:38,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:38,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:38,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:38,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:38,183 INFO L87 Difference]: Start difference. First operand 3289 states and 4779 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 03:20:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:38,359 INFO L93 Difference]: Finished difference Result 8198 states and 11916 transitions. [2024-11-19 03:20:38,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:38,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-11-19 03:20:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:38,383 INFO L225 Difference]: With dead ends: 8198 [2024-11-19 03:20:38,383 INFO L226 Difference]: Without dead ends: 4933 [2024-11-19 03:20:38,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:38,396 INFO L432 NwaCegarLoop]: 1245 mSDtfsCounter, 651 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:38,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 2408 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 03:20:38,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2024-11-19 03:20:38,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 4921. [2024-11-19 03:20:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 4096 states have (on average 1.442138671875) internal successors, (5907), 4139 states have internal predecessors, (5907), 605 states have call successors, (605), 220 states have call predecessors, (605), 219 states have return successors, (644), 601 states have call predecessors, (644), 604 states have call successors, (644) [2024-11-19 03:20:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 7156 transitions. [2024-11-19 03:20:38,602 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 7156 transitions. Word has length 140 [2024-11-19 03:20:38,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:38,603 INFO L471 AbstractCegarLoop]: Abstraction has 4921 states and 7156 transitions. [2024-11-19 03:20:38,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-19 03:20:38,603 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 7156 transitions. [2024-11-19 03:20:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-19 03:20:38,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:38,613 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:38,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:20:38,613 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:38,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:38,614 INFO L85 PathProgramCache]: Analyzing trace with hash -621933258, now seen corresponding path program 1 times [2024-11-19 03:20:38,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:38,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595637589] [2024-11-19 03:20:38,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:38,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:38,829 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-19 03:20:38,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:38,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595637589] [2024-11-19 03:20:38,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595637589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:38,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:38,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:38,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780002054] [2024-11-19 03:20:38,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:38,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:38,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:38,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:38,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:38,833 INFO L87 Difference]: Start difference. First operand 4921 states and 7156 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 03:20:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:39,019 INFO L93 Difference]: Finished difference Result 12056 states and 17414 transitions. [2024-11-19 03:20:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 169 [2024-11-19 03:20:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:39,054 INFO L225 Difference]: With dead ends: 12056 [2024-11-19 03:20:39,054 INFO L226 Difference]: Without dead ends: 7159 [2024-11-19 03:20:39,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:39,067 INFO L432 NwaCegarLoop]: 1836 mSDtfsCounter, 791 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:39,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 3029 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:20:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7159 states. [2024-11-19 03:20:39,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7159 to 7145. [2024-11-19 03:20:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7145 states, 5950 states have (on average 1.43109243697479) internal successors, (8515), 6018 states have internal predecessors, (8515), 847 states have call successors, (847), 348 states have call predecessors, (847), 347 states have return successors, (908), 842 states have call predecessors, (908), 846 states have call successors, (908) [2024-11-19 03:20:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7145 states to 7145 states and 10270 transitions. [2024-11-19 03:20:39,262 INFO L78 Accepts]: Start accepts. Automaton has 7145 states and 10270 transitions. Word has length 169 [2024-11-19 03:20:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:39,263 INFO L471 AbstractCegarLoop]: Abstraction has 7145 states and 10270 transitions. [2024-11-19 03:20:39,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 03:20:39,263 INFO L276 IsEmpty]: Start isEmpty. Operand 7145 states and 10270 transitions. [2024-11-19 03:20:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 03:20:39,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:39,273 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:39,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:20:39,274 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:39,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:39,274 INFO L85 PathProgramCache]: Analyzing trace with hash -785325419, now seen corresponding path program 1 times [2024-11-19 03:20:39,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:39,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122561809] [2024-11-19 03:20:39,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:39,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-19 03:20:39,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:39,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122561809] [2024-11-19 03:20:39,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122561809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:39,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:39,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:39,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748058041] [2024-11-19 03:20:39,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:39,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:39,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:39,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:39,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:39,555 INFO L87 Difference]: Start difference. First operand 7145 states and 10270 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 03:20:43,564 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 [] [2024-11-19 03:20:43,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:43,872 INFO L93 Difference]: Finished difference Result 17247 states and 24748 transitions. [2024-11-19 03:20:43,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:43,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 163 [2024-11-19 03:20:43,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:43,931 INFO L225 Difference]: With dead ends: 17247 [2024-11-19 03:20:43,935 INFO L226 Difference]: Without dead ends: 10137 [2024-11-19 03:20:44,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:44,026 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 858 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 2415 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:44,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 2415 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:20:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10137 states. [2024-11-19 03:20:44,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10137 to 10113. [2024-11-19 03:20:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10113 states, 8396 states have (on average 1.4238923296808004) internal successors, (11955), 8490 states have internal predecessors, (11955), 1175 states have call successors, (1175), 542 states have call predecessors, (1175), 541 states have return successors, (1264), 1168 states have call predecessors, (1264), 1174 states have call successors, (1264) [2024-11-19 03:20:44,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10113 states to 10113 states and 14394 transitions. [2024-11-19 03:20:44,336 INFO L78 Accepts]: Start accepts. Automaton has 10113 states and 14394 transitions. Word has length 163 [2024-11-19 03:20:44,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:44,338 INFO L471 AbstractCegarLoop]: Abstraction has 10113 states and 14394 transitions. [2024-11-19 03:20:44,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-19 03:20:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 10113 states and 14394 transitions. [2024-11-19 03:20:44,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 03:20:44,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:44,351 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:44,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:20:44,352 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:44,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:44,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1964429109, now seen corresponding path program 1 times [2024-11-19 03:20:44,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:44,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663136792] [2024-11-19 03:20:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:44,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:44,630 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-19 03:20:44,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:44,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663136792] [2024-11-19 03:20:44,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663136792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:20:44,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:20:44,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:20:44,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236784211] [2024-11-19 03:20:44,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:20:44,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:20:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:44,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:20:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:44,638 INFO L87 Difference]: Start difference. First operand 10113 states and 14394 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 03:20:44,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:20:44,814 INFO L93 Difference]: Finished difference Result 15202 states and 21781 transitions. [2024-11-19 03:20:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:20:44,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2024-11-19 03:20:44,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:20:44,866 INFO L225 Difference]: With dead ends: 15202 [2024-11-19 03:20:44,867 INFO L226 Difference]: Without dead ends: 10133 [2024-11-19 03:20:44,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:20:44,888 INFO L432 NwaCegarLoop]: 1235 mSDtfsCounter, 3 mSDsluCounter, 1227 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2462 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:20:44,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2462 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:20:44,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10133 states. [2024-11-19 03:20:45,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10133 to 10133. [2024-11-19 03:20:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10133 states, 8416 states have (on average 1.422884980988593) internal successors, (11975), 8510 states have internal predecessors, (11975), 1175 states have call successors, (1175), 542 states have call predecessors, (1175), 541 states have return successors, (1264), 1168 states have call predecessors, (1264), 1174 states have call successors, (1264) [2024-11-19 03:20:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10133 states to 10133 states and 14414 transitions. [2024-11-19 03:20:45,221 INFO L78 Accepts]: Start accepts. Automaton has 10133 states and 14414 transitions. Word has length 168 [2024-11-19 03:20:45,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:20:45,223 INFO L471 AbstractCegarLoop]: Abstraction has 10133 states and 14414 transitions. [2024-11-19 03:20:45,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 03:20:45,224 INFO L276 IsEmpty]: Start isEmpty. Operand 10133 states and 14414 transitions. [2024-11-19 03:20:45,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-19 03:20:45,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:20:45,235 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:20:45,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:20:45,235 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:20:45,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:20:45,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1283936148, now seen corresponding path program 1 times [2024-11-19 03:20:45,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:20:45,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458862578] [2024-11-19 03:20:45,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:45,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:20:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-19 03:20:45,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:20:45,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458862578] [2024-11-19 03:20:45,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458862578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:20:45,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553260180] [2024-11-19 03:20:45,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:20:45,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:20:45,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:20:45,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:20:45,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:20:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:20:46,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 1309 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 03:20:46,553 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:20:46,763 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 89 proven. 5 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-19 03:20:46,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:20:47,692 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-19 03:20:47,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553260180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:20:47,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:20:47,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 14 [2024-11-19 03:20:47,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592813750] [2024-11-19 03:20:47,693 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:20:47,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 03:20:47,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:20:47,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 03:20:47,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-19 03:20:47,697 INFO L87 Difference]: Start difference. First operand 10133 states and 14414 transitions. Second operand has 14 states, 14 states have (on average 12.857142857142858) internal successors, (180), 13 states have internal predecessors, (180), 9 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 9 states have call predecessors, (38), 8 states have call successors, (38) [2024-11-19 03:20:51,711 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 [] [2024-11-19 03:20:55,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:20:59,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:21:03,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:21:07,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:21:11,765 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 [] [2024-11-19 03:21:15,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:15,333 INFO L93 Difference]: Finished difference Result 22827 states and 32643 transitions. [2024-11-19 03:21:15,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 03:21:15,335 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.857142857142858) internal successors, (180), 13 states have internal predecessors, (180), 9 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 9 states have call predecessors, (38), 8 states have call successors, (38) Word has length 170 [2024-11-19 03:21:15,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:15,378 INFO L225 Difference]: With dead ends: 22827 [2024-11-19 03:21:15,379 INFO L226 Difference]: Without dead ends: 12729 [2024-11-19 03:21:15,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 341 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-11-19 03:21:15,402 INFO L432 NwaCegarLoop]: 1155 mSDtfsCounter, 7247 mSDsluCounter, 5922 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 1770 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7342 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 5192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1770 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:15,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7342 Valid, 7077 Invalid, 5192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1770 Valid, 3416 Invalid, 6 Unknown, 0 Unchecked, 27.1s Time] [2024-11-19 03:21:15,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12729 states. [2024-11-19 03:21:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12729 to 12361. [2024-11-19 03:21:15,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12361 states, 10264 states have (on average 1.4229345284489479) internal successors, (14605), 10408 states have internal predecessors, (14605), 1429 states have call successors, (1429), 644 states have call predecessors, (1429), 667 states have return successors, (1590), 1416 states have call predecessors, (1590), 1428 states have call successors, (1590) [2024-11-19 03:21:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12361 states to 12361 states and 17624 transitions. [2024-11-19 03:21:15,727 INFO L78 Accepts]: Start accepts. Automaton has 12361 states and 17624 transitions. Word has length 170 [2024-11-19 03:21:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:15,727 INFO L471 AbstractCegarLoop]: Abstraction has 12361 states and 17624 transitions. [2024-11-19 03:21:15,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.857142857142858) internal successors, (180), 13 states have internal predecessors, (180), 9 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 9 states have call predecessors, (38), 8 states have call successors, (38) [2024-11-19 03:21:15,728 INFO L276 IsEmpty]: Start isEmpty. Operand 12361 states and 17624 transitions. [2024-11-19 03:21:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-19 03:21:15,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:15,743 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:21:15,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 03:21:15,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:15,948 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:15,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1183346102, now seen corresponding path program 1 times [2024-11-19 03:21:15,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:15,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273332411] [2024-11-19 03:21:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:15,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-19 03:21:16,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:16,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273332411] [2024-11-19 03:21:16,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273332411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:16,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:21:16,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:21:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573007369] [2024-11-19 03:21:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:16,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:21:16,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:21:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:21:16,292 INFO L87 Difference]: Start difference. First operand 12361 states and 17624 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 03:21:20,299 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 [] [2024-11-19 03:21:20,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:20,643 INFO L93 Difference]: Finished difference Result 28885 states and 41030 transitions. [2024-11-19 03:21:20,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:21:20,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 203 [2024-11-19 03:21:20,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:20,707 INFO L225 Difference]: With dead ends: 28885 [2024-11-19 03:21:20,707 INFO L226 Difference]: Without dead ends: 16559 [2024-11-19 03:21:20,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:21:20,733 INFO L432 NwaCegarLoop]: 2106 mSDtfsCounter, 873 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 5436 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:20,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 5436 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:21:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16559 states. [2024-11-19 03:21:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16559 to 12377. [2024-11-19 03:21:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12377 states, 10280 states have (on average 1.4222762645914397) internal successors, (14621), 10424 states have internal predecessors, (14621), 1429 states have call successors, (1429), 644 states have call predecessors, (1429), 667 states have return successors, (1590), 1416 states have call predecessors, (1590), 1428 states have call successors, (1590) [2024-11-19 03:21:21,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 17640 transitions. [2024-11-19 03:21:21,172 INFO L78 Accepts]: Start accepts. Automaton has 12377 states and 17640 transitions. Word has length 203 [2024-11-19 03:21:21,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:21,173 INFO L471 AbstractCegarLoop]: Abstraction has 12377 states and 17640 transitions. [2024-11-19 03:21:21,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-19 03:21:21,173 INFO L276 IsEmpty]: Start isEmpty. Operand 12377 states and 17640 transitions. [2024-11-19 03:21:21,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-19 03:21:21,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:21,188 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:21:21,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:21:21,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:21,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:21,189 INFO L85 PathProgramCache]: Analyzing trace with hash 448889238, now seen corresponding path program 1 times [2024-11-19 03:21:21,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:21,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518006744] [2024-11-19 03:21:21,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:21,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-19 03:21:21,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:21,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518006744] [2024-11-19 03:21:21,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518006744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:21,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:21:21,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 03:21:21,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735111090] [2024-11-19 03:21:21,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:21,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:21:21,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:21,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:21:21,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:21:21,746 INFO L87 Difference]: Start difference. First operand 12377 states and 17640 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 03:21:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:22,017 INFO L93 Difference]: Finished difference Result 24761 states and 35314 transitions. [2024-11-19 03:21:22,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 03:21:22,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 216 [2024-11-19 03:21:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:22,065 INFO L225 Difference]: With dead ends: 24761 [2024-11-19 03:21:22,066 INFO L226 Difference]: Without dead ends: 12419 [2024-11-19 03:21:22,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:21:22,093 INFO L432 NwaCegarLoop]: 1234 mSDtfsCounter, 0 mSDsluCounter, 3697 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4931 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:22,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4931 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:21:22,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12419 states. [2024-11-19 03:21:22,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12419 to 12409. [2024-11-19 03:21:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12409 states, 10304 states have (on average 1.421292701863354) internal successors, (14645), 10448 states have internal predecessors, (14645), 1429 states have call successors, (1429), 644 states have call predecessors, (1429), 675 states have return successors, (1600), 1424 states have call predecessors, (1600), 1428 states have call successors, (1600) [2024-11-19 03:21:22,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12409 states to 12409 states and 17674 transitions. [2024-11-19 03:21:22,487 INFO L78 Accepts]: Start accepts. Automaton has 12409 states and 17674 transitions. Word has length 216 [2024-11-19 03:21:22,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:22,487 INFO L471 AbstractCegarLoop]: Abstraction has 12409 states and 17674 transitions. [2024-11-19 03:21:22,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 03:21:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 12409 states and 17674 transitions. [2024-11-19 03:21:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-19 03:21:22,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:22,506 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:21:22,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:21:22,507 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:22,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash -267387702, now seen corresponding path program 1 times [2024-11-19 03:21:22,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:22,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145017120] [2024-11-19 03:21:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:22,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:22,892 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-19 03:21:22,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:22,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145017120] [2024-11-19 03:21:22,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145017120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:21:22,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130854866] [2024-11-19 03:21:22,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:22,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:22,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:21:22,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:21:22,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:21:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:23,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 03:21:23,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:21:23,577 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2024-11-19 03:21:23,577 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:21:23,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130854866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:23,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:21:23,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-19 03:21:23,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339854003] [2024-11-19 03:21:23,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:23,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:21:23,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:23,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:21:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:21:23,579 INFO L87 Difference]: Start difference. First operand 12409 states and 17674 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-19 03:21:27,586 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 [] [2024-11-19 03:21:28,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:28,037 INFO L93 Difference]: Finished difference Result 29005 states and 41154 transitions. [2024-11-19 03:21:28,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:21:28,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 223 [2024-11-19 03:21:28,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:28,100 INFO L225 Difference]: With dead ends: 29005 [2024-11-19 03:21:28,100 INFO L226 Difference]: Without dead ends: 16631 [2024-11-19 03:21:28,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:21:28,169 INFO L432 NwaCegarLoop]: 2097 mSDtfsCounter, 885 mSDsluCounter, 5352 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 7449 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:28,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 7449 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:21:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16631 states. [2024-11-19 03:21:28,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16631 to 12417. [2024-11-19 03:21:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12417 states, 10312 states have (on average 1.420965865011637) internal successors, (14653), 10448 states have internal predecessors, (14653), 1429 states have call successors, (1429), 644 states have call predecessors, (1429), 675 states have return successors, (1600), 1424 states have call predecessors, (1600), 1428 states have call successors, (1600) [2024-11-19 03:21:28,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12417 states to 12417 states and 17682 transitions. [2024-11-19 03:21:28,607 INFO L78 Accepts]: Start accepts. Automaton has 12417 states and 17682 transitions. Word has length 223 [2024-11-19 03:21:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:28,608 INFO L471 AbstractCegarLoop]: Abstraction has 12417 states and 17682 transitions. [2024-11-19 03:21:28,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-19 03:21:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 12417 states and 17682 transitions. [2024-11-19 03:21:28,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-19 03:21:28,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:28,623 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:21:28,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 03:21:28,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 03:21:28,824 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:28,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash -799000879, now seen corresponding path program 1 times [2024-11-19 03:21:28,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:28,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444308289] [2024-11-19 03:21:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:28,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-11-19 03:21:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:29,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444308289] [2024-11-19 03:21:29,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444308289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:21:29,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134043569] [2024-11-19 03:21:29,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:29,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:29,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:21:29,333 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:21:29,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:21:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:30,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 2386 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 03:21:30,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:21:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-11-19 03:21:30,427 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:21:30,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134043569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:30,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:21:30,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-19 03:21:30,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80555777] [2024-11-19 03:21:30,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:30,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:21:30,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:30,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:21:30,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:21:30,428 INFO L87 Difference]: Start difference. First operand 12417 states and 17682 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-19 03:21:34,436 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 [] [2024-11-19 03:21:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:34,997 INFO L93 Difference]: Finished difference Result 16673 states and 23572 transitions. [2024-11-19 03:21:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:21:34,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 262 [2024-11-19 03:21:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:35,047 INFO L225 Difference]: With dead ends: 16673 [2024-11-19 03:21:35,048 INFO L226 Difference]: Without dead ends: 16647 [2024-11-19 03:21:35,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:21:35,053 INFO L432 NwaCegarLoop]: 2082 mSDtfsCounter, 1924 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1924 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:35,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1924 Valid, 2810 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 03:21:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16647 states. [2024-11-19 03:21:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16647 to 14933. [2024-11-19 03:21:35,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14933 states, 12368 states have (on average 1.4146992238033635) internal successors, (17497), 12532 states have internal predecessors, (17497), 1736 states have call successors, (1736), 789 states have call predecessors, (1736), 828 states have return successors, (1975), 1731 states have call predecessors, (1975), 1735 states have call successors, (1975) [2024-11-19 03:21:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14933 states to 14933 states and 21208 transitions. [2024-11-19 03:21:35,538 INFO L78 Accepts]: Start accepts. Automaton has 14933 states and 21208 transitions. Word has length 262 [2024-11-19 03:21:35,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:35,541 INFO L471 AbstractCegarLoop]: Abstraction has 14933 states and 21208 transitions. [2024-11-19 03:21:35,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 4 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-19 03:21:35,542 INFO L276 IsEmpty]: Start isEmpty. Operand 14933 states and 21208 transitions. [2024-11-19 03:21:35,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-19 03:21:35,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:35,562 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:21:35,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 03:21:35,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:21:35,763 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:35,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:35,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1668535853, now seen corresponding path program 1 times [2024-11-19 03:21:35,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:35,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352446360] [2024-11-19 03:21:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:35,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-19 03:21:36,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352446360] [2024-11-19 03:21:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352446360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:36,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:21:36,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:21:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262432779] [2024-11-19 03:21:36,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:36,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:21:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:36,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:21:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:21:36,191 INFO L87 Difference]: Start difference. First operand 14933 states and 21208 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-19 03:21:40,198 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 [] [2024-11-19 03:21:40,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:21:40,553 INFO L93 Difference]: Finished difference Result 22335 states and 31739 transitions. [2024-11-19 03:21:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:21:40,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 266 [2024-11-19 03:21:40,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:21:40,592 INFO L225 Difference]: With dead ends: 22335 [2024-11-19 03:21:40,592 INFO L226 Difference]: Without dead ends: 6303 [2024-11-19 03:21:40,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:21:40,626 INFO L432 NwaCegarLoop]: 1263 mSDtfsCounter, 1087 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:21:40,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 1340 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:21:40,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-11-19 03:21:40,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6303. [2024-11-19 03:21:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6303 states, 5192 states have (on average 1.4029275808936825) internal successors, (7284), 5263 states have internal predecessors, (7284), 744 states have call successors, (744), 349 states have call predecessors, (744), 366 states have return successors, (849), 744 states have call predecessors, (849), 743 states have call successors, (849) [2024-11-19 03:21:40,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6303 states to 6303 states and 8877 transitions. [2024-11-19 03:21:40,888 INFO L78 Accepts]: Start accepts. Automaton has 6303 states and 8877 transitions. Word has length 266 [2024-11-19 03:21:40,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:21:40,889 INFO L471 AbstractCegarLoop]: Abstraction has 6303 states and 8877 transitions. [2024-11-19 03:21:40,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-19 03:21:40,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6303 states and 8877 transitions. [2024-11-19 03:21:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-19 03:21:40,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:21:40,898 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:21:40,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 03:21:40,898 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:21:40,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:21:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1462817944, now seen corresponding path program 1 times [2024-11-19 03:21:40,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:21:40,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391660697] [2024-11-19 03:21:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:21:40,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:21:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:21:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-11-19 03:21:42,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:21:42,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391660697] [2024-11-19 03:21:42,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391660697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:21:42,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:21:42,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 03:21:42,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868562393] [2024-11-19 03:21:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:21:42,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 03:21:42,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:21:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 03:21:42,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 03:21:42,226 INFO L87 Difference]: Start difference. First operand 6303 states and 8877 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28)