./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:47:28,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:47:28,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:47:28,113 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:47:28,113 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:47:28,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:47:28,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:47:28,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:47:28,152 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:47:28,152 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:47:28,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:47:28,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:47:28,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:47:28,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:47:28,156 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:47:28,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:47:28,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:47:28,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:47:28,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:47:28,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:47:28,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:47:28,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:47:28,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:47:28,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:47:28,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:47:28,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:47:28,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:47:28,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:47:28,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:47:28,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:47:28,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:47:28,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:47:28,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:47:28,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:47:28,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:47:28,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:47:28,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:47:28,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:47:28,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:47:28,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:47:28,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:47:28,167 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:47:28,167 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-20 09:47:28,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:47:28,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:47:28,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:47:28,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:47:28,431 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:47:28,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-20 09:47:29,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:47:30,276 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:47:30,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-20 09:47:30,322 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8fb26c0/9e7fe95e2172472383c1b7cf57029810/FLAGd9292db76 [2024-11-20 09:47:30,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8fb26c0/9e7fe95e2172472383c1b7cf57029810 [2024-11-20 09:47:30,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:47:30,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:47:30,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:47:30,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:47:30,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:47:30,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:47:30" (1/1) ... [2024-11-20 09:47:30,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d3e947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:30, skipping insertion in model container [2024-11-20 09:47:30,352 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:47:30" (1/1) ... [2024-11-20 09:47:30,493 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:47:32,324 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172094,172107] [2024-11-20 09:47:32,327 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172145,172158] [2024-11-20 09:47:32,327 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172202,172215] [2024-11-20 09:47:32,330 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172763,172776] [2024-11-20 09:47:32,331 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172814,172827] [2024-11-20 09:47:32,336 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174060,174073] [2024-11-20 09:47:32,336 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174118,174131] [2024-11-20 09:47:32,338 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174622,174635] [2024-11-20 09:47:32,338 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174679,174692] [2024-11-20 09:47:32,339 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174746,174759] [2024-11-20 09:47:32,340 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[175274,175287] [2024-11-20 09:47:32,340 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[175341,175354] [2024-11-20 09:47:32,342 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[175944,175957] [2024-11-20 09:47:32,520 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[198494,198507] [2024-11-20 09:47:32,521 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[198561,198574] [2024-11-20 09:47:32,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:47:32,542 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:47:32,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-20 09:47:32,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-20 09:47:32,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-20 09:47:32,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-20 09:47:32,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-20 09:47:32,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-20 09:47:32,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-20 09:47:32,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-20 09:47:32,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-20 09:47:32,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-20 09:47:32,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-20 09:47:32,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-20 09:47:32,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-20 09:47:32,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-20 09:47:32,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-20 09:47:32,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-20 09:47:32,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-20 09:47:32,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-20 09:47:32,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-20 09:47:32,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-20 09:47:32,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-20 09:47:32,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-20 09:47:32,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-20 09:47:32,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-20 09:47:32,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-20 09:47:32,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-20 09:47:32,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-20 09:47:32,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-20 09:47:32,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-20 09:47:32,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-20 09:47:32,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-20 09:47:32,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-20 09:47:32,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-20 09:47:32,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-20 09:47:32,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-20 09:47:32,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-20 09:47:32,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-20 09:47:32,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-20 09:47:32,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-20 09:47:32,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-20 09:47:32,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-20 09:47:32,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-20 09:47:32,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-20 09:47:32,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-20 09:47:32,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-20 09:47:32,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-20 09:47:32,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-20 09:47:32,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-20 09:47:32,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-20 09:47:32,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-20 09:47:32,702 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-20 09:47:32,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-20 09:47:32,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-20 09:47:32,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-20 09:47:32,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-20 09:47:32,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-20 09:47:32,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-20 09:47:32,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-20 09:47:32,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-20 09:47:32,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-20 09:47:32,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-20 09:47:32,708 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-20 09:47:32,709 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-20 09:47:32,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-20 09:47:32,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-20 09:47:32,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-20 09:47:32,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-20 09:47:32,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-20 09:47:32,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-20 09:47:32,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-20 09:47:32,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-20 09:47:32,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-20 09:47:32,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-20 09:47:32,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-20 09:47:32,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-20 09:47:32,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-20 09:47:32,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-20 09:47:32,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-20 09:47:32,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-20 09:47:32,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-20 09:47:32,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-20 09:47:32,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-20 09:47:32,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-20 09:47:32,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-20 09:47:32,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-20 09:47:32,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-20 09:47:32,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-20 09:47:32,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-20 09:47:32,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-20 09:47:32,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-20 09:47:32,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-20 09:47:32,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-20 09:47:32,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-20 09:47:32,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-20 09:47:32,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-20 09:47:32,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-20 09:47:32,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-20 09:47:32,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-20 09:47:32,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-20 09:47:32,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-20 09:47:32,784 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172094,172107] [2024-11-20 09:47:32,784 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172145,172158] [2024-11-20 09:47:32,785 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172202,172215] [2024-11-20 09:47:32,786 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172763,172776] [2024-11-20 09:47:32,787 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[172814,172827] [2024-11-20 09:47:32,789 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174060,174073] [2024-11-20 09:47:32,792 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174118,174131] [2024-11-20 09:47:32,793 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174622,174635] [2024-11-20 09:47:32,793 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174679,174692] [2024-11-20 09:47:32,794 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[174746,174759] [2024-11-20 09:47:32,797 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[175274,175287] [2024-11-20 09:47:32,798 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[175341,175354] [2024-11-20 09:47:32,799 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[175944,175957] [2024-11-20 09:47:32,812 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[198494,198507] [2024-11-20 09:47:32,813 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i[198561,198574] [2024-11-20 09:47:32,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:47:33,130 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:47:33,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33 WrapperNode [2024-11-20 09:47:33,131 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:47:33,132 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:47:33,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:47:33,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:47:33,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,335 INFO L138 Inliner]: procedures = 921, calls = 957, calls flagged for inlining = 833, calls inlined = 67, statements flattened = 875 [2024-11-20 09:47:33,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:47:33,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:47:33,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:47:33,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:47:33,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,415 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]. [2024-11-20 09:47:33,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:47:33,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:47:33,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:47:33,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:47:33,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (1/1) ... [2024-11-20 09:47:33,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:47:33,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:47:33,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:47:33,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:47:33,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 09:47:33,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 09:47:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 09:47:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 09:47:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:47:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 09:47:33,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 09:47:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 09:47:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 09:47:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:47:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:47:33,590 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-20 09:47:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-20 09:47:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 09:47:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 09:47:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 09:47:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 09:47:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 09:47:33,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 09:47:33,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 09:47:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:47:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 09:47:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 09:47:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 09:47:33,598 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 09:47:33,833 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:47:33,834 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:47:34,887 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:47:34,887 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:47:35,350 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:47:35,350 INFO L316 CfgBuilder]: Removed 106 assume(true) statements. [2024-11-20 09:47:35,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:47:35 BoogieIcfgContainer [2024-11-20 09:47:35,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:47:35,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:47:35,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:47:35,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:47:35,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:47:30" (1/3) ... [2024-11-20 09:47:35,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abab74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:47:35, skipping insertion in model container [2024-11-20 09:47:35,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:47:33" (2/3) ... [2024-11-20 09:47:35,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abab74f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:47:35, skipping insertion in model container [2024-11-20 09:47:35,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:47:35" (3/3) ... [2024-11-20 09:47:35,359 INFO L112 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-20 09:47:35,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:47:35,376 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-11-20 09:47:35,376 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:47:35,566 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 09:47:35,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 385 transitions, 777 flow [2024-11-20 09:47:35,758 INFO L124 PetriNetUnfolderBase]: 152/415 cut-off events. [2024-11-20 09:47:35,758 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 09:47:35,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 415 events. 152/415 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1283 event pairs, 0 based on Foata normal form. 0/241 useless extension candidates. Maximal degree in co-relation 316. Up to 6 conditions per place. [2024-11-20 09:47:35,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 385 transitions, 777 flow [2024-11-20 09:47:35,781 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 385 transitions, 777 flow [2024-11-20 09:47:35,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:47:35,801 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;@1cbd5a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:47:35,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-20 09:47:35,810 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:47:35,811 INFO L124 PetriNetUnfolderBase]: 4/19 cut-off events. [2024-11-20 09:47:35,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 09:47:35,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:35,812 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:35,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:35,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:35,817 INFO L85 PathProgramCache]: Analyzing trace with hash -345191653, now seen corresponding path program 1 times [2024-11-20 09:47:35,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:35,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061108303] [2024-11-20 09:47:35,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:35,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:36,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061108303] [2024-11-20 09:47:36,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061108303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:36,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:36,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:36,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208727892] [2024-11-20 09:47:36,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:36,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:47:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:47:36,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:47:36,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 385 [2024-11-20 09:47:36,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 385 transitions, 777 flow. Second operand has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2024-11-20 09:47:36,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:36,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 385 [2024-11-20 09:47:36,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:37,094 INFO L124 PetriNetUnfolderBase]: 945/2650 cut-off events. [2024-11-20 09:47:37,098 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 09:47:37,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4383 conditions, 2650 events. 945/2650 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17823 event pairs, 696 based on Foata normal form. 1475/3717 useless extension candidates. Maximal degree in co-relation 4276. Up to 1717 conditions per place. [2024-11-20 09:47:37,119 INFO L140 encePairwiseOnDemand]: 274/385 looper letters, 141 selfloop transitions, 3 changer transitions 0/275 dead transitions. [2024-11-20 09:47:37,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 275 transitions, 845 flow [2024-11-20 09:47:37,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:47:37,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:47:37,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 780 transitions. [2024-11-20 09:47:37,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2024-11-20 09:47:37,137 INFO L175 Difference]: Start difference. First operand has 247 places, 385 transitions, 777 flow. Second operand 4 states and 780 transitions. [2024-11-20 09:47:37,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 275 transitions, 845 flow [2024-11-20 09:47:37,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 275 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 09:47:37,150 INFO L231 Difference]: Finished difference. Result has 248 places, 275 transitions, 563 flow [2024-11-20 09:47:37,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=563, PETRI_PLACES=248, PETRI_TRANSITIONS=275} [2024-11-20 09:47:37,158 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 1 predicate places. [2024-11-20 09:47:37,158 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 275 transitions, 563 flow [2024-11-20 09:47:37,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2024-11-20 09:47:37,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:37,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:37,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:47:37,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:37,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:37,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1016649958, now seen corresponding path program 1 times [2024-11-20 09:47:37,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:37,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182535942] [2024-11-20 09:47:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:37,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:37,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182535942] [2024-11-20 09:47:37,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182535942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:37,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:37,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:37,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311092715] [2024-11-20 09:47:37,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:37,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:47:37,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:37,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:47:37,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:47:37,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 385 [2024-11-20 09:47:37,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 275 transitions, 563 flow. Second operand has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2024-11-20 09:47:37,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:37,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 385 [2024-11-20 09:47:37,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:37,894 INFO L124 PetriNetUnfolderBase]: 945/2648 cut-off events. [2024-11-20 09:47:37,894 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 09:47:37,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4385 conditions, 2648 events. 945/2648 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17853 event pairs, 696 based on Foata normal form. 1/2243 useless extension candidates. Maximal degree in co-relation 4338. Up to 1717 conditions per place. [2024-11-20 09:47:37,907 INFO L140 encePairwiseOnDemand]: 381/385 looper letters, 141 selfloop transitions, 3 changer transitions 0/273 dead transitions. [2024-11-20 09:47:37,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 273 transitions, 847 flow [2024-11-20 09:47:37,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:47:37,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:47:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 673 transitions. [2024-11-20 09:47:37,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.437012987012987 [2024-11-20 09:47:37,911 INFO L175 Difference]: Start difference. First operand has 248 places, 275 transitions, 563 flow. Second operand 4 states and 673 transitions. [2024-11-20 09:47:37,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 273 transitions, 847 flow [2024-11-20 09:47:37,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 273 transitions, 841 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 09:47:37,918 INFO L231 Difference]: Finished difference. Result has 246 places, 273 transitions, 559 flow [2024-11-20 09:47:37,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=559, PETRI_PLACES=246, PETRI_TRANSITIONS=273} [2024-11-20 09:47:37,919 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, -1 predicate places. [2024-11-20 09:47:37,919 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 273 transitions, 559 flow [2024-11-20 09:47:37,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2024-11-20 09:47:37,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:37,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:37,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:47:37,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:37,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2043223717, now seen corresponding path program 1 times [2024-11-20 09:47:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:37,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583804363] [2024-11-20 09:47:37,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:38,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:38,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583804363] [2024-11-20 09:47:38,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583804363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:38,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:38,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:38,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177552019] [2024-11-20 09:47:38,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:38,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:47:38,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:38,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:47:38,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:47:38,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 385 [2024-11-20 09:47:38,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 273 transitions, 559 flow. Second operand has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2024-11-20 09:47:38,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:38,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 385 [2024-11-20 09:47:38,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:38,512 INFO L124 PetriNetUnfolderBase]: 945/2651 cut-off events. [2024-11-20 09:47:38,513 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 09:47:38,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4391 conditions, 2651 events. 945/2651 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17839 event pairs, 696 based on Foata normal form. 0/2245 useless extension candidates. Maximal degree in co-relation 4344. Up to 1724 conditions per place. [2024-11-20 09:47:38,526 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 145 selfloop transitions, 2 changer transitions 0/276 dead transitions. [2024-11-20 09:47:38,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 276 transitions, 859 flow [2024-11-20 09:47:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:47:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:47:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2024-11-20 09:47:38,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47359307359307357 [2024-11-20 09:47:38,529 INFO L175 Difference]: Start difference. First operand has 246 places, 273 transitions, 559 flow. Second operand 3 states and 547 transitions. [2024-11-20 09:47:38,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 276 transitions, 859 flow [2024-11-20 09:47:38,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 276 transitions, 853 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 09:47:38,536 INFO L231 Difference]: Finished difference. Result has 246 places, 274 transitions, 565 flow [2024-11-20 09:47:38,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=565, PETRI_PLACES=246, PETRI_TRANSITIONS=274} [2024-11-20 09:47:38,538 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, -1 predicate places. [2024-11-20 09:47:38,538 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 274 transitions, 565 flow [2024-11-20 09:47:38,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 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) [2024-11-20 09:47:38,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:38,538 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:38,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:47:38,539 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:38,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:38,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1006974997, now seen corresponding path program 1 times [2024-11-20 09:47:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:38,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438669402] [2024-11-20 09:47:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:38,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:38,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438669402] [2024-11-20 09:47:38,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438669402] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:47:38,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946309359] [2024-11-20 09:47:38,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:38,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:47:38,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:47:38,655 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) [2024-11-20 09:47:38,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 09:47:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:38,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 09:47:38,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:47:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:38,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:47:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:38,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946309359] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:47:38,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:47:38,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-20 09:47:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441894836] [2024-11-20 09:47:38,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:47:38,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:47:38,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:38,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:47:38,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:47:38,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 385 [2024-11-20 09:47:38,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 274 transitions, 565 flow. Second operand has 7 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 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) [2024-11-20 09:47:38,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:38,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 385 [2024-11-20 09:47:38,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:39,771 INFO L124 PetriNetUnfolderBase]: 945/2654 cut-off events. [2024-11-20 09:47:39,771 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 09:47:39,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4401 conditions, 2654 events. 945/2654 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17900 event pairs, 696 based on Foata normal form. 1/2249 useless extension candidates. Maximal degree in co-relation 4377. Up to 1722 conditions per place. [2024-11-20 09:47:39,786 INFO L140 encePairwiseOnDemand]: 381/385 looper letters, 145 selfloop transitions, 5 changer transitions 0/279 dead transitions. [2024-11-20 09:47:39,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 279 transitions, 877 flow [2024-11-20 09:47:39,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:47:39,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:47:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 816 transitions. [2024-11-20 09:47:39,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4238961038961039 [2024-11-20 09:47:39,790 INFO L175 Difference]: Start difference. First operand has 246 places, 274 transitions, 565 flow. Second operand 5 states and 816 transitions. [2024-11-20 09:47:39,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 279 transitions, 877 flow [2024-11-20 09:47:39,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 279 transitions, 875 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:47:39,795 INFO L231 Difference]: Finished difference. Result has 251 places, 276 transitions, 589 flow [2024-11-20 09:47:39,796 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=589, PETRI_PLACES=251, PETRI_TRANSITIONS=276} [2024-11-20 09:47:39,797 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 4 predicate places. [2024-11-20 09:47:39,797 INFO L471 AbstractCegarLoop]: Abstraction has has 251 places, 276 transitions, 589 flow [2024-11-20 09:47:39,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 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) [2024-11-20 09:47:39,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:39,798 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:39,808 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 09:47:40,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:47:40,003 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:40,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:40,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1948686171, now seen corresponding path program 2 times [2024-11-20 09:47:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:40,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492627655] [2024-11-20 09:47:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:40,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 09:47:40,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:40,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492627655] [2024-11-20 09:47:40,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492627655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:40,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:40,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:40,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543415882] [2024-11-20 09:47:40,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:40,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:47:40,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:40,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:47:40,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:47:40,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 385 [2024-11-20 09:47:40,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 276 transitions, 589 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-20 09:47:40,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:40,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 385 [2024-11-20 09:47:40,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:40,649 INFO L124 PetriNetUnfolderBase]: 945/2652 cut-off events. [2024-11-20 09:47:40,649 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-20 09:47:40,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4410 conditions, 2652 events. 945/2652 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17852 event pairs, 696 based on Foata normal form. 1/2248 useless extension candidates. Maximal degree in co-relation 4362. Up to 1724 conditions per place. [2024-11-20 09:47:40,663 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 145 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2024-11-20 09:47:40,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 274 transitions, 879 flow [2024-11-20 09:47:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:47:40,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:47:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2024-11-20 09:47:40,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4683982683982684 [2024-11-20 09:47:40,666 INFO L175 Difference]: Start difference. First operand has 251 places, 276 transitions, 589 flow. Second operand 3 states and 541 transitions. [2024-11-20 09:47:40,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 274 transitions, 879 flow [2024-11-20 09:47:40,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 274 transitions, 873 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 09:47:40,672 INFO L231 Difference]: Finished difference. Result has 250 places, 274 transitions, 583 flow [2024-11-20 09:47:40,673 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=583, PETRI_PLACES=250, PETRI_TRANSITIONS=274} [2024-11-20 09:47:40,675 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 3 predicate places. [2024-11-20 09:47:40,675 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 274 transitions, 583 flow [2024-11-20 09:47:40,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-20 09:47:40,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:40,676 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:40,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:47:40,676 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:40,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:40,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1764510388, now seen corresponding path program 1 times [2024-11-20 09:47:40,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:40,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789656049] [2024-11-20 09:47:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:40,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 09:47:40,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:40,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789656049] [2024-11-20 09:47:40,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789656049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:40,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:40,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:47:40,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046841452] [2024-11-20 09:47:40,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:40,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:47:40,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:40,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:47:40,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:47:40,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 385 [2024-11-20 09:47:40,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 274 transitions, 583 flow. Second operand has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2024-11-20 09:47:40,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:40,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 385 [2024-11-20 09:47:40,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:41,401 INFO L124 PetriNetUnfolderBase]: 945/2650 cut-off events. [2024-11-20 09:47:41,401 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-20 09:47:41,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4408 conditions, 2650 events. 945/2650 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17839 event pairs, 696 based on Foata normal form. 1/2248 useless extension candidates. Maximal degree in co-relation 4365. Up to 1724 conditions per place. [2024-11-20 09:47:41,416 INFO L140 encePairwiseOnDemand]: 380/385 looper letters, 143 selfloop transitions, 4 changer transitions 0/272 dead transitions. [2024-11-20 09:47:41,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 272 transitions, 873 flow [2024-11-20 09:47:41,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:47:41,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:47:41,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 669 transitions. [2024-11-20 09:47:41,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4344155844155844 [2024-11-20 09:47:41,419 INFO L175 Difference]: Start difference. First operand has 250 places, 274 transitions, 583 flow. Second operand 4 states and 669 transitions. [2024-11-20 09:47:41,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 272 transitions, 873 flow [2024-11-20 09:47:41,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 272 transitions, 869 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 09:47:41,424 INFO L231 Difference]: Finished difference. Result has 249 places, 272 transitions, 583 flow [2024-11-20 09:47:41,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=583, PETRI_PLACES=249, PETRI_TRANSITIONS=272} [2024-11-20 09:47:41,425 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 2 predicate places. [2024-11-20 09:47:41,426 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 272 transitions, 583 flow [2024-11-20 09:47:41,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 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) [2024-11-20 09:47:41,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:41,426 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:41,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:47:41,427 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:41,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:41,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1707069689, now seen corresponding path program 1 times [2024-11-20 09:47:41,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:41,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152121124] [2024-11-20 09:47:41,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:41,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 09:47:41,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:41,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152121124] [2024-11-20 09:47:41,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152121124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:41,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:41,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:41,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194062039] [2024-11-20 09:47:41,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:41,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:47:41,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:41,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:47:41,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:47:41,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 385 [2024-11-20 09:47:41,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 272 transitions, 583 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2024-11-20 09:47:41,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:41,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 385 [2024-11-20 09:47:41,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:41,981 INFO L124 PetriNetUnfolderBase]: 948/2673 cut-off events. [2024-11-20 09:47:41,981 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 09:47:41,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4448 conditions, 2673 events. 948/2673 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17842 event pairs, 696 based on Foata normal form. 1/2271 useless extension candidates. Maximal degree in co-relation 4402. Up to 1734 conditions per place. [2024-11-20 09:47:41,993 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 156 selfloop transitions, 2 changer transitions 0/283 dead transitions. [2024-11-20 09:47:41,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 283 transitions, 929 flow [2024-11-20 09:47:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:47:41,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:47:41,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2024-11-20 09:47:41,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4805194805194805 [2024-11-20 09:47:41,996 INFO L175 Difference]: Start difference. First operand has 249 places, 272 transitions, 583 flow. Second operand 3 states and 555 transitions. [2024-11-20 09:47:41,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 283 transitions, 929 flow [2024-11-20 09:47:41,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 283 transitions, 913 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 09:47:42,001 INFO L231 Difference]: Finished difference. Result has 249 places, 273 transitions, 587 flow [2024-11-20 09:47:42,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=587, PETRI_PLACES=249, PETRI_TRANSITIONS=273} [2024-11-20 09:47:42,002 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 2 predicate places. [2024-11-20 09:47:42,002 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 273 transitions, 587 flow [2024-11-20 09:47:42,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2024-11-20 09:47:42,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:42,003 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:42,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:47:42,004 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:42,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:42,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1208477997, now seen corresponding path program 1 times [2024-11-20 09:47:42,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:42,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060631698] [2024-11-20 09:47:42,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:42,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 09:47:42,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:42,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060631698] [2024-11-20 09:47:42,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060631698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:47:42,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805609586] [2024-11-20 09:47:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:42,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:47:42,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:47:42,178 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) [2024-11-20 09:47:42,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 09:47:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:42,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 09:47:42,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:47:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-20 09:47:42,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:47:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 09:47:42,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805609586] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:47:42,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:47:42,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 9 [2024-11-20 09:47:42,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905423134] [2024-11-20 09:47:42,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:47:42,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 09:47:42,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:42,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 09:47:42,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 09:47:42,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 385 [2024-11-20 09:47:42,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 273 transitions, 587 flow. Second operand has 9 states, 9 states have (on average 137.44444444444446) internal successors, (1237), 9 states have internal predecessors, (1237), 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) [2024-11-20 09:47:42,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:42,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 385 [2024-11-20 09:47:42,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:43,463 INFO L124 PetriNetUnfolderBase]: 951/2697 cut-off events. [2024-11-20 09:47:43,463 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-20 09:47:43,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4483 conditions, 2697 events. 951/2697 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17732 event pairs, 696 based on Foata normal form. 2/2296 useless extension candidates. Maximal degree in co-relation 4436. Up to 1723 conditions per place. [2024-11-20 09:47:43,483 INFO L140 encePairwiseOnDemand]: 381/385 looper letters, 165 selfloop transitions, 5 changer transitions 0/295 dead transitions. [2024-11-20 09:47:43,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 295 transitions, 973 flow [2024-11-20 09:47:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:47:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:47:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 834 transitions. [2024-11-20 09:47:43,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43324675324675327 [2024-11-20 09:47:43,486 INFO L175 Difference]: Start difference. First operand has 249 places, 273 transitions, 587 flow. Second operand 5 states and 834 transitions. [2024-11-20 09:47:43,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 295 transitions, 973 flow [2024-11-20 09:47:43,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 295 transitions, 971 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 09:47:43,494 INFO L231 Difference]: Finished difference. Result has 255 places, 275 transitions, 615 flow [2024-11-20 09:47:43,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=255, PETRI_TRANSITIONS=275} [2024-11-20 09:47:43,495 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 8 predicate places. [2024-11-20 09:47:43,496 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 275 transitions, 615 flow [2024-11-20 09:47:43,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.44444444444446) internal successors, (1237), 9 states have internal predecessors, (1237), 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) [2024-11-20 09:47:43,497 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:43,498 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] [2024-11-20 09:47:43,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 09:47:43,698 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,SelfDestructingSolverStorable7 [2024-11-20 09:47:43,699 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:43,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:43,699 INFO L85 PathProgramCache]: Analyzing trace with hash 716716409, now seen corresponding path program 2 times [2024-11-20 09:47:43,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:43,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520310676] [2024-11-20 09:47:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:43,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:44,353 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 09:47:44,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:44,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520310676] [2024-11-20 09:47:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520310676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 09:47:44,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839084046] [2024-11-20 09:47:44,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 09:47:44,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:47:44,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:47:44,357 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) [2024-11-20 09:47:44,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 09:47:44,627 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 09:47:44,627 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 09:47:44,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 09:47:44,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 09:47:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 09:47:44,692 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 09:47:44,872 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-20 09:47:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839084046] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 09:47:44,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 09:47:44,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 16 [2024-11-20 09:47:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974299882] [2024-11-20 09:47:44,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 09:47:44,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 09:47:44,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:44,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 09:47:44,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-20 09:47:45,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 385 [2024-11-20 09:47:45,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 275 transitions, 615 flow. Second operand has 16 states, 16 states have (on average 131.6875) internal successors, (2107), 16 states have internal predecessors, (2107), 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) [2024-11-20 09:47:45,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:45,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 385 [2024-11-20 09:47:45,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:46,614 INFO L124 PetriNetUnfolderBase]: 953/2733 cut-off events. [2024-11-20 09:47:46,615 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-20 09:47:46,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4576 conditions, 2733 events. 953/2733 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17973 event pairs, 696 based on Foata normal form. 2/2324 useless extension candidates. Maximal degree in co-relation 4527. Up to 1723 conditions per place. [2024-11-20 09:47:46,628 INFO L140 encePairwiseOnDemand]: 374/385 looper letters, 177 selfloop transitions, 27 changer transitions 0/326 dead transitions. [2024-11-20 09:47:46,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 326 transitions, 1145 flow [2024-11-20 09:47:46,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 09:47:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 09:47:46,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2508 transitions. [2024-11-20 09:47:46,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3619047619047619 [2024-11-20 09:47:46,636 INFO L175 Difference]: Start difference. First operand has 255 places, 275 transitions, 615 flow. Second operand 18 states and 2508 transitions. [2024-11-20 09:47:46,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 326 transitions, 1145 flow [2024-11-20 09:47:46,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 326 transitions, 1137 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-20 09:47:46,645 INFO L231 Difference]: Finished difference. Result has 281 places, 299 transitions, 792 flow [2024-11-20 09:47:46,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=792, PETRI_PLACES=281, PETRI_TRANSITIONS=299} [2024-11-20 09:47:46,647 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 34 predicate places. [2024-11-20 09:47:46,647 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 299 transitions, 792 flow [2024-11-20 09:47:46,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 131.6875) internal successors, (2107), 16 states have internal predecessors, (2107), 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) [2024-11-20 09:47:46,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:46,648 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] [2024-11-20 09:47:46,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 09:47:46,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 09:47:46,850 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:46,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:46,850 INFO L85 PathProgramCache]: Analyzing trace with hash -486077235, now seen corresponding path program 1 times [2024-11-20 09:47:46,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:46,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69255461] [2024-11-20 09:47:46,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:46,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:47,118 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-20 09:47:47,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:47,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69255461] [2024-11-20 09:47:47,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69255461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:47,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:47,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:47,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027624873] [2024-11-20 09:47:47,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:47,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 09:47:47,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:47,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 09:47:47,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 09:47:47,126 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 385 [2024-11-20 09:47:47,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 299 transitions, 792 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2024-11-20 09:47:47,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:47,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 385 [2024-11-20 09:47:47,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:47:47,632 INFO L124 PetriNetUnfolderBase]: 945/2705 cut-off events. [2024-11-20 09:47:47,632 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-20 09:47:47,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4586 conditions, 2705 events. 945/2705 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17828 event pairs, 696 based on Foata normal form. 4/2306 useless extension candidates. Maximal degree in co-relation 4526. Up to 1757 conditions per place. [2024-11-20 09:47:47,648 INFO L140 encePairwiseOnDemand]: 382/385 looper letters, 161 selfloop transitions, 6 changer transitions 0/289 dead transitions. [2024-11-20 09:47:47,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 289 transitions, 1082 flow [2024-11-20 09:47:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 09:47:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 09:47:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 537 transitions. [2024-11-20 09:47:47,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4649350649350649 [2024-11-20 09:47:47,653 INFO L175 Difference]: Start difference. First operand has 281 places, 299 transitions, 792 flow. Second operand 3 states and 537 transitions. [2024-11-20 09:47:47,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 289 transitions, 1082 flow [2024-11-20 09:47:47,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 289 transitions, 1059 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-20 09:47:47,662 INFO L231 Difference]: Finished difference. Result has 274 places, 289 transitions, 737 flow [2024-11-20 09:47:47,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=385, PETRI_DIFFERENCE_MINUEND_FLOW=725, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=274, PETRI_TRANSITIONS=289} [2024-11-20 09:47:47,663 INFO L277 CegarLoopForPetriNet]: 247 programPoint places, 27 predicate places. [2024-11-20 09:47:47,664 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 289 transitions, 737 flow [2024-11-20 09:47:47,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2024-11-20 09:47:47,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:47,665 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] [2024-11-20 09:47:47,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:47:47,665 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 26 more)] === [2024-11-20 09:47:47,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:47,666 INFO L85 PathProgramCache]: Analyzing trace with hash 639319446, now seen corresponding path program 1 times [2024-11-20 09:47:47,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:47,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800315305] [2024-11-20 09:47:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:47,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 09:47:47,878 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 09:47:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 09:47:48,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 09:47:48,048 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 09:47:48,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-20 09:47:48,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (27 of 29 remaining) [2024-11-20 09:47:48,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (26 of 29 remaining) [2024-11-20 09:47:48,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (25 of 29 remaining) [2024-11-20 09:47:48,051 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (24 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (23 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (22 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (20 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONERROR_FUNCTION (19 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONERROR_FUNCTION (18 of 29 remaining) [2024-11-20 09:47:48,052 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONERROR_FUNCTION (17 of 29 remaining) [2024-11-20 09:47:48,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONERROR_FUNCTION (16 of 29 remaining) [2024-11-20 09:47:48,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONERROR_FUNCTION (15 of 29 remaining) [2024-11-20 09:47:48,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONERROR_FUNCTION (14 of 29 remaining) [2024-11-20 09:47:48,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONERROR_FUNCTION (13 of 29 remaining) [2024-11-20 09:47:48,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONERROR_FUNCTION (12 of 29 remaining) [2024-11-20 09:47:48,053 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONERROR_FUNCTION (11 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONERROR_FUNCTION (8 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONERROR_FUNCTION (7 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONERROR_FUNCTION (6 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONERROR_FUNCTION (5 of 29 remaining) [2024-11-20 09:47:48,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONERROR_FUNCTION (4 of 29 remaining) [2024-11-20 09:47:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONERROR_FUNCTION (3 of 29 remaining) [2024-11-20 09:47:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONERROR_FUNCTION (2 of 29 remaining) [2024-11-20 09:47:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONERROR_FUNCTION (1 of 29 remaining) [2024-11-20 09:47:48,055 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONERROR_FUNCTION (0 of 29 remaining) [2024-11-20 09:47:48,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 09:47:48,055 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:48,058 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 09:47:48,058 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 09:47:48,218 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 09:47:48,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 672 transitions, 1360 flow [2024-11-20 09:47:48,329 INFO L124 PetriNetUnfolderBase]: 277/754 cut-off events. [2024-11-20 09:47:48,329 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 09:47:48,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 766 conditions, 754 events. 277/754 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3107 event pairs, 0 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 621. Up to 12 conditions per place. [2024-11-20 09:47:48,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 672 transitions, 1360 flow [2024-11-20 09:47:48,368 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 672 transitions, 1360 flow [2024-11-20 09:47:48,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:47:48,369 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;@1cbd5a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:47:48,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-20 09:47:48,372 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:47:48,372 INFO L124 PetriNetUnfolderBase]: 4/19 cut-off events. [2024-11-20 09:47:48,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 09:47:48,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:47:48,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:47:48,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2024-11-20 09:47:48,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:47:48,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1265860027, now seen corresponding path program 1 times [2024-11-20 09:47:48,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:47:48,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382678956] [2024-11-20 09:47:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:47:48,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:47:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:47:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:47:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:47:48,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382678956] [2024-11-20 09:47:48,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382678956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:47:48,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:47:48,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:47:48,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445544701] [2024-11-20 09:47:48,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:47:48,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:47:48,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:47:48,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:47:48,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:47:48,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 672 [2024-11-20 09:47:48,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 672 transitions, 1360 flow. Second operand has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 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) [2024-11-20 09:47:48,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:47:48,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 672 [2024-11-20 09:47:48,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:48:20,744 INFO L124 PetriNetUnfolderBase]: 174484/307987 cut-off events. [2024-11-20 09:48:20,744 INFO L125 PetriNetUnfolderBase]: For 772/772 co-relation queries the response was YES. [2024-11-20 09:48:21,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551480 conditions, 307987 events. 174484/307987 cut-off events. For 772/772 co-relation queries the response was YES. Maximal size of possible extension queue 4468. Compared 3226549 event pairs, 132395 based on Foata normal form. 180475/444851 useless extension candidates. Maximal degree in co-relation 528334. Up to 243035 conditions per place. [2024-11-20 09:48:23,011 INFO L140 encePairwiseOnDemand]: 482/672 looper letters, 253 selfloop transitions, 3 changer transitions 0/483 dead transitions. [2024-11-20 09:48:23,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 483 transitions, 1494 flow [2024-11-20 09:48:23,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:48:23,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:48:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1355 transitions. [2024-11-20 09:48:23,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5040922619047619 [2024-11-20 09:48:23,020 INFO L175 Difference]: Start difference. First operand has 429 places, 672 transitions, 1360 flow. Second operand 4 states and 1355 transitions. [2024-11-20 09:48:23,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 483 transitions, 1494 flow [2024-11-20 09:48:23,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 430 places, 483 transitions, 1494 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 09:48:23,032 INFO L231 Difference]: Finished difference. Result has 430 places, 483 transitions, 988 flow [2024-11-20 09:48:23,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=672, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=988, PETRI_PLACES=430, PETRI_TRANSITIONS=483} [2024-11-20 09:48:23,034 INFO L277 CegarLoopForPetriNet]: 429 programPoint places, 1 predicate places. [2024-11-20 09:48:23,034 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 483 transitions, 988 flow [2024-11-20 09:48:23,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 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) [2024-11-20 09:48:23,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:48:23,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:48:23,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 09:48:23,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 37 more)] === [2024-11-20 09:48:23,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:48:23,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1015809466, now seen corresponding path program 1 times [2024-11-20 09:48:23,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:48:23,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317917580] [2024-11-20 09:48:23,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:48:23,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:48:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:48:23,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:48:23,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:48:23,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317917580] [2024-11-20 09:48:23,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317917580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:48:23,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:48:23,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:48:23,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801965816] [2024-11-20 09:48:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:48:23,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:48:23,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:48:23,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:48:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:48:23,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 672 [2024-11-20 09:48:23,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 483 transitions, 988 flow. Second operand has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 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) [2024-11-20 09:48:23,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:48:23,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 672 [2024-11-20 09:48:23,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand