./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/hclhlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:02:21,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:02:21,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 02:02:21,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:02:21,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:02:21,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:02:21,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:02:21,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:02:21,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:02:21,849 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:02:21,849 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 02:02:21,849 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 02:02:21,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:02:21,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:02:21,850 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:02:21,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:02:21,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 02:02:21,850 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:02:21,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:02:21,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:02:21,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:02:21,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 02:02:21,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 02:02:21,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 02:02:21,854 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:02:21,855 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 02:02:21,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:02:21,855 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:02:21,855 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:02:21,855 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:02:21,855 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:02:21,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:02:21,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:02:21,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 02:02:21,857 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 02:02:21,857 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 02:02:21,857 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 02:02:21,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 02:02:21,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-23 02:02:22,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:02:22,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:02:22,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:02:22,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:02:22,068 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:02:22,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/hclhlock.i [2024-11-23 02:02:23,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:02:23,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:02:23,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-23 02:02:23,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4eceae7d/f6a251cce8f24e029f1c53f32c1f79be/FLAGd04eed65d [2024-11-23 02:02:23,870 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4eceae7d/f6a251cce8f24e029f1c53f32c1f79be [2024-11-23 02:02:23,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:02:23,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:02:23,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:02:23,875 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:02:23,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:02:23,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:23" (1/1) ... [2024-11-23 02:02:23,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c575a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:23, skipping insertion in model container [2024-11-23 02:02:23,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:23" (1/1) ... [2024-11-23 02:02:23,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:02:25,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:02:25,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:02:25,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-23 02:02:25,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-23 02:02:25,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-23 02:02:25,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-23 02:02:25,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-23 02:02:25,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-23 02:02:25,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-23 02:02:25,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-23 02:02:25,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-23 02:02:25,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-23 02:02:25,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-23 02:02:25,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-23 02:02:25,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-23 02:02:25,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-23 02:02:25,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-23 02:02:25,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-23 02:02:25,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-23 02:02:25,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-23 02:02:25,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-23 02:02:25,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-23 02:02:25,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-23 02:02:25,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-23 02:02:25,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-23 02:02:25,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-23 02:02:25,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-23 02:02:25,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-23 02:02:25,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-23 02:02:25,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-23 02:02:25,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-23 02:02:25,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-23 02:02:25,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-23 02:02:25,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-23 02:02:25,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-23 02:02:25,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-23 02:02:25,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-23 02:02:25,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-23 02:02:25,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-23 02:02:25,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-23 02:02:25,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-23 02:02:25,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-23 02:02:25,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-23 02:02:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-23 02:02:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-23 02:02:25,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-23 02:02:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-23 02:02:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-23 02:02:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-23 02:02:25,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-23 02:02:25,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-23 02:02:25,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-23 02:02:25,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-23 02:02:25,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-23 02:02:25,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-23 02:02:25,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-23 02:02:25,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-23 02:02:25,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-23 02:02:25,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-23 02:02:25,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-23 02:02:25,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-23 02:02:25,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-23 02:02:25,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-23 02:02:25,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-23 02:02:25,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-23 02:02:25,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-23 02:02:25,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-23 02:02:25,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-23 02:02:25,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-23 02:02:25,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-23 02:02:25,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-23 02:02:25,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-23 02:02:25,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-23 02:02:25,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-23 02:02:25,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-23 02:02:25,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-23 02:02:25,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-23 02:02:25,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-23 02:02:25,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-23 02:02:25,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-23 02:02:25,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-23 02:02:25,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-23 02:02:25,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-23 02:02:25,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-23 02:02:25,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-23 02:02:25,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-23 02:02:25,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-23 02:02:25,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-23 02:02:25,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-23 02:02:25,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-23 02:02:25,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-23 02:02:25,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-23 02:02:25,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-23 02:02:25,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-23 02:02:25,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-23 02:02:25,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-23 02:02:25,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-23 02:02:25,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-23 02:02:25,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-23 02:02:25,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-23 02:02:25,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-23 02:02:25,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-23 02:02:25,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:02:25,686 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:02:25,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25 WrapperNode [2024-11-23 02:02:25,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:02:25,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:02:25,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:02:25,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:02:25,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,831 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 932 [2024-11-23 02:02:25,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:02:25,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:02:25,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:02:25,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:02:25,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,890 INFO L175 MemorySlicer]: Split 50 memory accesses to 4 slices as follows [2, 28, 18, 2]. 56 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 7, 6, 0]. The 15 writes are split as follows [0, 9, 5, 1]. [2024-11-23 02:02:25,891 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:02:25,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:02:25,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:02:25,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:02:25,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (1/1) ... [2024-11-23 02:02:25,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:02:25,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:02:25,991 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) [2024-11-23 02:02:25,994 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 [2024-11-23 02:02:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 02:02:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 02:02:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 02:02:26,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 02:02:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:02:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 02:02:26,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:02:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-23 02:02:26,036 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 02:02:26,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 02:02:26,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 02:02:26,041 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 02:02:26,223 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:02:26,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:02:27,073 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 02:02:27,073 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:02:27,461 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:02:27,461 INFO L316 CfgBuilder]: Removed 106 assume(true) statements. [2024-11-23 02:02:27,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:27 BoogieIcfgContainer [2024-11-23 02:02:27,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:02:27,463 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 02:02:27,463 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 02:02:27,466 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 02:02:27,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:23" (1/3) ... [2024-11-23 02:02:27,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e668d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:27, skipping insertion in model container [2024-11-23 02:02:27,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:25" (2/3) ... [2024-11-23 02:02:27,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e668d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:02:27, skipping insertion in model container [2024-11-23 02:02:27,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:02:27" (3/3) ... [2024-11-23 02:02:27,468 INFO L112 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-23 02:02:27,482 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 02:02:27,482 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-23 02:02:27,482 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 02:02:27,604 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-23 02:02:27,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 344 transitions, 695 flow [2024-11-23 02:02:27,712 INFO L124 PetriNetUnfolderBase]: 133/368 cut-off events. [2024-11-23 02:02:27,713 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 02:02:27,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 368 events. 133/368 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1063 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 287. Up to 6 conditions per place. [2024-11-23 02:02:27,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 344 transitions, 695 flow [2024-11-23 02:02:27,730 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 342 transitions, 688 flow [2024-11-23 02:02:27,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 02:02:27,748 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;@6777c378, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 02:02:27,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-23 02:02:27,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 02:02:27,781 INFO L124 PetriNetUnfolderBase]: 21/67 cut-off events. [2024-11-23 02:02:27,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:02:27,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:27,782 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:02:27,783 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:27,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash -775333675, now seen corresponding path program 1 times [2024-11-23 02:02:27,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:27,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376464734] [2024-11-23 02:02:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:27,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:27,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:27,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 02:02:27,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:27,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376464734] [2024-11-23 02:02:27,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376464734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:02:27,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:02:27,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 02:02:27,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471460819] [2024-11-23 02:02:27,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:02:28,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 02:02:28,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:28,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 02:02:28,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 02:02:28,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-23 02:02:28,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 342 transitions, 688 flow. Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:28,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:28,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-23 02:02:28,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:02:28,579 INFO L124 PetriNetUnfolderBase]: 1272/3162 cut-off events. [2024-11-23 02:02:28,580 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:02:28,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5504 conditions, 3162 events. 1272/3162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20579 event pairs, 970 based on Foata normal form. 1064/3851 useless extension candidates. Maximal degree in co-relation 5406. Up to 2338 conditions per place. [2024-11-23 02:02:28,596 INFO L140 encePairwiseOnDemand]: 253/344 looper letters, 158 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2024-11-23 02:02:28,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 251 transitions, 822 flow [2024-11-23 02:02:28,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 02:02:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-23 02:02:28,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 435 transitions. [2024-11-23 02:02:28,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6322674418604651 [2024-11-23 02:02:28,610 INFO L175 Difference]: Start difference. First operand has 222 places, 342 transitions, 688 flow. Second operand 2 states and 435 transitions. [2024-11-23 02:02:28,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 251 transitions, 822 flow [2024-11-23 02:02:28,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 251 transitions, 822 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 02:02:28,618 INFO L231 Difference]: Finished difference. Result has 223 places, 251 transitions, 506 flow [2024-11-23 02:02:28,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=506, PETRI_PLACES=223, PETRI_TRANSITIONS=251} [2024-11-23 02:02:28,623 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 1 predicate places. [2024-11-23 02:02:28,624 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 251 transitions, 506 flow [2024-11-23 02:02:28,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:28,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:28,635 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:02:28,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 02:02:28,635 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:28,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:28,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1691419316, now seen corresponding path program 1 times [2024-11-23 02:02:28,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:28,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55064975] [2024-11-23 02:02:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:28,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:28,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 02:02:28,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:28,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55064975] [2024-11-23 02:02:28,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55064975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:02:28,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:02:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:02:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841953749] [2024-11-23 02:02:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:02:28,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:02:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:28,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:02:28,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:02:28,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-23 02:02:28,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 251 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:28,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:28,805 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-23 02:02:28,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:02:29,239 INFO L124 PetriNetUnfolderBase]: 1272/3165 cut-off events. [2024-11-23 02:02:29,240 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:02:29,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5511 conditions, 3165 events. 1272/3165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20555 event pairs, 970 based on Foata normal form. 0/2790 useless extension candidates. Maximal degree in co-relation 5507. Up to 2334 conditions per place. [2024-11-23 02:02:29,249 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 159 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2024-11-23 02:02:29,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 254 transitions, 834 flow [2024-11-23 02:02:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:02:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:02:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2024-11-23 02:02:29,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4273255813953488 [2024-11-23 02:02:29,252 INFO L175 Difference]: Start difference. First operand has 223 places, 251 transitions, 506 flow. Second operand 3 states and 441 transitions. [2024-11-23 02:02:29,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 254 transitions, 834 flow [2024-11-23 02:02:29,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-23 02:02:29,257 INFO L231 Difference]: Finished difference. Result has 226 places, 252 transitions, 518 flow [2024-11-23 02:02:29,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=226, PETRI_TRANSITIONS=252} [2024-11-23 02:02:29,258 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 4 predicate places. [2024-11-23 02:02:29,258 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 252 transitions, 518 flow [2024-11-23 02:02:29,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:29,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:29,260 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:02:29,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 02:02:29,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:29,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:29,261 INFO L85 PathProgramCache]: Analyzing trace with hash -220822801, now seen corresponding path program 1 times [2024-11-23 02:02:29,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:29,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523095107] [2024-11-23 02:02:29,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:29,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 02:02:29,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523095107] [2024-11-23 02:02:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523095107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:02:29,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983647690] [2024-11-23 02:02:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:29,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:02:29,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:02:29,398 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) [2024-11-23 02:02:29,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 02:02:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:29,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 02:02:29,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:02:29,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 02:02:29,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:02:29,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 02:02:29,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983647690] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 02:02:29,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 02:02:29,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-23 02:02:29,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739755690] [2024-11-23 02:02:29,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:02:29,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:02:29,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:29,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:02:29,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-23 02:02:29,588 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-23 02:02:29,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 252 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:29,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:29,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-23 02:02:29,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:02:30,021 INFO L124 PetriNetUnfolderBase]: 1272/3166 cut-off events. [2024-11-23 02:02:30,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:02:30,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5520 conditions, 3166 events. 1272/3166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20485 event pairs, 970 based on Foata normal form. 0/2792 useless extension candidates. Maximal degree in co-relation 5514. Up to 2326 conditions per place. [2024-11-23 02:02:30,035 INFO L140 encePairwiseOnDemand]: 340/344 looper letters, 157 selfloop transitions, 3 changer transitions 0/253 dead transitions. [2024-11-23 02:02:30,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 253 transitions, 840 flow [2024-11-23 02:02:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:02:30,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:02:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2024-11-23 02:02:30,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4253875968992248 [2024-11-23 02:02:30,037 INFO L175 Difference]: Start difference. First operand has 226 places, 252 transitions, 518 flow. Second operand 3 states and 439 transitions. [2024-11-23 02:02:30,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 253 transitions, 840 flow [2024-11-23 02:02:30,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 253 transitions, 838 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:02:30,041 INFO L231 Difference]: Finished difference. Result has 229 places, 253 transitions, 534 flow [2024-11-23 02:02:30,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=229, PETRI_TRANSITIONS=253} [2024-11-23 02:02:30,041 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 7 predicate places. [2024-11-23 02:02:30,042 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 253 transitions, 534 flow [2024-11-23 02:02:30,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:30,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:30,042 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-23 02:02:30,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 02:02:30,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:02:30,247 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:30,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:30,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1085362613, now seen corresponding path program 1 times [2024-11-23 02:02:30,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:30,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144949941] [2024-11-23 02:02:30,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:30,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 02:02:30,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144949941] [2024-11-23 02:02:30,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144949941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:02:30,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650341873] [2024-11-23 02:02:30,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:30,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:02:30,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:02:30,378 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) [2024-11-23 02:02:30,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 02:02:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:30,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 02:02:30,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:02:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 02:02:30,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:02:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 02:02:30,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650341873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:02:30,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:02:30,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 10 [2024-11-23 02:02:30,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550675973] [2024-11-23 02:02:30,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:02:30,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 02:02:30,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:30,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 02:02:30,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-23 02:02:30,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-23 02:02:30,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 253 transitions, 534 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:30,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:30,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-23 02:02:30,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:02:31,595 INFO L124 PetriNetUnfolderBase]: 1278/3215 cut-off events. [2024-11-23 02:02:31,595 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-23 02:02:31,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5619 conditions, 3215 events. 1278/3215 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20497 event pairs, 970 based on Foata normal form. 3/2845 useless extension candidates. Maximal degree in co-relation 5612. Up to 2319 conditions per place. [2024-11-23 02:02:31,608 INFO L140 encePairwiseOnDemand]: 338/344 looper letters, 187 selfloop transitions, 8 changer transitions 0/288 dead transitions. [2024-11-23 02:02:31,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 288 transitions, 1012 flow [2024-11-23 02:02:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 02:02:31,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-23 02:02:31,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 849 transitions. [2024-11-23 02:02:31,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3525747508305648 [2024-11-23 02:02:31,610 INFO L175 Difference]: Start difference. First operand has 229 places, 253 transitions, 534 flow. Second operand 7 states and 849 transitions. [2024-11-23 02:02:31,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 288 transitions, 1012 flow [2024-11-23 02:02:31,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 288 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 02:02:31,614 INFO L231 Difference]: Finished difference. Result has 237 places, 257 transitions, 580 flow [2024-11-23 02:02:31,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=580, PETRI_PLACES=237, PETRI_TRANSITIONS=257} [2024-11-23 02:02:31,615 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 15 predicate places. [2024-11-23 02:02:31,616 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 257 transitions, 580 flow [2024-11-23 02:02:31,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:31,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:31,617 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-23 02:02:31,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 02:02:31,817 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,SelfDestructingSolverStorable3 [2024-11-23 02:02:31,817 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:31,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:31,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1769595098, now seen corresponding path program 2 times [2024-11-23 02:02:31,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:31,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139012212] [2024-11-23 02:02:31,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:02:31,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:31,916 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:02:31,916 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:02:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 02:02:32,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:32,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139012212] [2024-11-23 02:02:32,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139012212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:02:32,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135582909] [2024-11-23 02:02:32,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:02:32,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:02:32,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:02:32,346 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) [2024-11-23 02:02:32,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 02:02:32,650 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-23 02:02:32,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:02:32,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-23 02:02:32,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:02:32,712 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 02:02:32,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:02:32,852 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 02:02:32,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135582909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:02:32,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:02:32,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-11-23 02:02:32,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526450121] [2024-11-23 02:02:32,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:02:32,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 02:02:32,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:32,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 02:02:32,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-23 02:02:36,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-23 02:02:36,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 344 [2024-11-23 02:02:36,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 257 transitions, 580 flow. Second operand has 16 states, 16 states have (on average 95.875) internal successors, (1534), 16 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:36,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:36,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 344 [2024-11-23 02:02:36,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:02:38,650 INFO L124 PetriNetUnfolderBase]: 1280/3251 cut-off events. [2024-11-23 02:02:38,650 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-23 02:02:38,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5713 conditions, 3251 events. 1280/3251 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20697 event pairs, 970 based on Foata normal form. 2/2872 useless extension candidates. Maximal degree in co-relation 5703. Up to 2329 conditions per place. [2024-11-23 02:02:38,663 INFO L140 encePairwiseOnDemand]: 333/344 looper letters, 198 selfloop transitions, 27 changer transitions 0/316 dead transitions. [2024-11-23 02:02:38,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 316 transitions, 1170 flow [2024-11-23 02:02:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-23 02:02:38,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-23 02:02:38,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1864 transitions. [2024-11-23 02:02:38,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30103359173126615 [2024-11-23 02:02:38,668 INFO L175 Difference]: Start difference. First operand has 237 places, 257 transitions, 580 flow. Second operand 18 states and 1864 transitions. [2024-11-23 02:02:38,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 316 transitions, 1170 flow [2024-11-23 02:02:38,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 316 transitions, 1166 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-23 02:02:38,673 INFO L231 Difference]: Finished difference. Result has 263 places, 281 transitions, 765 flow [2024-11-23 02:02:38,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=765, PETRI_PLACES=263, PETRI_TRANSITIONS=281} [2024-11-23 02:02:38,674 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 41 predicate places. [2024-11-23 02:02:38,674 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 281 transitions, 765 flow [2024-11-23 02:02:38,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 95.875) internal successors, (1534), 16 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:38,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:38,675 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:02:38,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 02:02:38,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:02:38,876 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:38,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 604280953, now seen corresponding path program 1 times [2024-11-23 02:02:38,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:38,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069937673] [2024-11-23 02:02:38,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-23 02:02:39,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:39,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069937673] [2024-11-23 02:02:39,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069937673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:02:39,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:02:39,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:02:39,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279214314] [2024-11-23 02:02:39,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:02:39,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:02:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:39,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:02:39,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:02:39,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 344 [2024-11-23 02:02:39,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 281 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:39,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:39,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 344 [2024-11-23 02:02:39,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:02:39,698 INFO L124 PetriNetUnfolderBase]: 1272/3223 cut-off events. [2024-11-23 02:02:39,698 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-23 02:02:39,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5728 conditions, 3223 events. 1272/3223 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20572 event pairs, 970 based on Foata normal form. 4/2854 useless extension candidates. Maximal degree in co-relation 5707. Up to 2375 conditions per place. [2024-11-23 02:02:39,710 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 175 selfloop transitions, 6 changer transitions 0/271 dead transitions. [2024-11-23 02:02:39,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 271 transitions, 1083 flow [2024-11-23 02:02:39,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:02:39,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:02:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2024-11-23 02:02:39,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4176356589147287 [2024-11-23 02:02:39,712 INFO L175 Difference]: Start difference. First operand has 263 places, 281 transitions, 765 flow. Second operand 3 states and 431 transitions. [2024-11-23 02:02:39,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 271 transitions, 1083 flow [2024-11-23 02:02:39,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 271 transitions, 1064 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-23 02:02:39,717 INFO L231 Difference]: Finished difference. Result has 257 places, 271 transitions, 714 flow [2024-11-23 02:02:39,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=714, PETRI_PLACES=257, PETRI_TRANSITIONS=271} [2024-11-23 02:02:39,718 INFO L277 CegarLoopForPetriNet]: 222 programPoint places, 35 predicate places. [2024-11-23 02:02:39,718 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 271 transitions, 714 flow [2024-11-23 02:02:39,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:39,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:39,719 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:02:39,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 02:02:39,719 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-23 02:02:39,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2076993763, now seen corresponding path program 1 times [2024-11-23 02:02:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:39,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513213051] [2024-11-23 02:02:39,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:39,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:02:39,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 02:02:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 02:02:39,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 02:02:39,999 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-23 02:02:40,000 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-23 02:02:40,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-23 02:02:40,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-23 02:02:40,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-23 02:02:40,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-23 02:02:40,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-23 02:02:40,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-23 02:02:40,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-23 02:02:40,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-23 02:02:40,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-23 02:02:40,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-23 02:02:40,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-23 02:02:40,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-23 02:02:40,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 02:02:40,004 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-23 02:02:40,006 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-23 02:02:40,006 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-23 02:02:40,130 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 02:02:40,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 608 transitions, 1232 flow [2024-11-23 02:02:40,234 INFO L124 PetriNetUnfolderBase]: 243/672 cut-off events. [2024-11-23 02:02:40,234 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-23 02:02:40,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 672 events. 243/672 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2708 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 563. Up to 12 conditions per place. [2024-11-23 02:02:40,246 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 608 transitions, 1232 flow [2024-11-23 02:02:40,258 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 393 places, 608 transitions, 1232 flow [2024-11-23 02:02:40,261 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 02:02:40,262 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;@6777c378, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 02:02:40,262 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-23 02:02:40,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 02:02:40,272 INFO L124 PetriNetUnfolderBase]: 41/123 cut-off events. [2024-11-23 02:02:40,272 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-23 02:02:40,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:02:40,273 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:02:40,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-23 02:02:40,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:02:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1764158594, now seen corresponding path program 1 times [2024-11-23 02:02:40,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:02:40,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704053463] [2024-11-23 02:02:40,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:02:40,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:02:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:02:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 02:02:40,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:02:40,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704053463] [2024-11-23 02:02:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704053463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:02:40,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:02:40,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 02:02:40,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799217845] [2024-11-23 02:02:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:02:40,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 02:02:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:02:40,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 02:02:40,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 02:02:40,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 608 [2024-11-23 02:02:40,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 608 transitions, 1232 flow. Second operand has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 02:02:40,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:02:40,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 608 [2024-11-23 02:02:40,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand