./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/hclhlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:49:20,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:49:20,059 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:49:20,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:49:20,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:49:20,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:49:20,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:49:20,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:49:20,082 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:49:20,082 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:49:20,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:49:20,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:49:20,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:49:20,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:49:20,085 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:49:20,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:49:20,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:49:20,086 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:49:20,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:49:20,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:49:20,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:49:20,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:49:20,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:49:20,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:49:20,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:49:20,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:49:20,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:49:20,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:49:20,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:49:20,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:49:20,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:49:20,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:49:20,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:49:20,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:49:20,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:49:20,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:49:20,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:49:20,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:49:20,093 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-12 20:49:20,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:49:20,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:49:20,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:49:20,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:49:20,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:49:20,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/hclhlock.i [2024-11-12 20:49:21,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:49:21,809 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:49:21,810 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-12 20:49:21,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4311462af/3c4135e84df343d1a95de20687640599/FLAGdce8a06bf [2024-11-12 20:49:22,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4311462af/3c4135e84df343d1a95de20687640599 [2024-11-12 20:49:22,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:49:22,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:49:22,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:49:22,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:49:22,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:49:22,071 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:49:22" (1/1) ... [2024-11-12 20:49:22,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82f1ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:22, skipping insertion in model container [2024-11-12 20:49:22,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:49:22" (1/1) ... [2024-11-12 20:49:22,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:49:23,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:49:23,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:49:23,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-12 20:49:23,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-12 20:49:23,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-12 20:49:23,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-12 20:49:23,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-12 20:49:23,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-12 20:49:23,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-12 20:49:23,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-12 20:49:23,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-12 20:49:23,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-12 20:49:23,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-12 20:49:23,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-12 20:49:23,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-12 20:49:23,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-12 20:49:23,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-12 20:49:23,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-12 20:49:23,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-12 20:49:23,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-12 20:49:23,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-12 20:49:23,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-12 20:49:23,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-12 20:49:23,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-12 20:49:23,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-12 20:49:23,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-12 20:49:23,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-12 20:49:23,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-12 20:49:23,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-12 20:49:23,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-12 20:49:23,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-12 20:49:23,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-12 20:49:23,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-12 20:49:23,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-12 20:49:23,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-12 20:49:23,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-12 20:49:23,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-12 20:49:23,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-12 20:49:23,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-12 20:49:23,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-12 20:49:23,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-12 20:49:23,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-12 20:49:23,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-12 20:49:23,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-12 20:49:23,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-12 20:49:23,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-12 20:49:23,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-12 20:49:23,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-12 20:49:23,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-12 20:49:23,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-12 20:49:23,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-12 20:49:23,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-12 20:49:23,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-12 20:49:23,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-12 20:49:23,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-12 20:49:23,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-12 20:49:23,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-12 20:49:23,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-12 20:49:23,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-12 20:49:23,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-12 20:49:23,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-12 20:49:23,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-12 20:49:23,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-12 20:49:23,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-12 20:49:23,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-12 20:49:23,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-12 20:49:23,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-12 20:49:23,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-12 20:49:23,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-12 20:49:23,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-12 20:49:23,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-12 20:49:23,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-12 20:49:23,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-12 20:49:23,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-12 20:49:23,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-12 20:49:23,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-12 20:49:23,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-12 20:49:23,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-12 20:49:23,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-12 20:49:23,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-12 20:49:23,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-12 20:49:23,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-12 20:49:23,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-12 20:49:23,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-12 20:49:23,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-12 20:49:23,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-12 20:49:23,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-12 20:49:23,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-12 20:49:23,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-12 20:49:23,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-12 20:49:23,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-12 20:49:23,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-12 20:49:23,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-12 20:49:23,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-12 20:49:23,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-12 20:49:23,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-12 20:49:23,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-12 20:49:23,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-12 20:49:23,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-12 20:49:23,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-12 20:49:23,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-12 20:49:23,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-12 20:49:23,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:49:23,946 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:49:23,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23 WrapperNode [2024-11-12 20:49:23,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:49:23,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:49:23,948 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:49:23,948 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:49:23,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,071 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 932 [2024-11-12 20:49:24,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:49:24,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:49:24,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:49:24,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:49:24,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,124 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]. [2024-11-12 20:49:24,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,154 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:49:24,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:49:24,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:49:24,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:49:24,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (1/1) ... [2024-11-12 20:49:24,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:49:24,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:49:24,201 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) [2024-11-12 20:49:24,207 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 [2024-11-12 20:49:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:49:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 20:49:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 20:49:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 20:49:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:49:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 20:49:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 20:49:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 20:49:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 20:49:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:49:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:49:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-12 20:49:24,243 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-12 20:49:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 20:49:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 20:49:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 20:49:24,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 20:49:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 20:49:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:49:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 20:49:24,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 20:49:24,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 20:49:24,247 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:49:24,413 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:49:24,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:49:25,224 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:49:25,224 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:49:25,594 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:49:25,594 INFO L316 CfgBuilder]: Removed 106 assume(true) statements. [2024-11-12 20:49:25,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:49:25 BoogieIcfgContainer [2024-11-12 20:49:25,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:49:25,597 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:49:25,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:49:25,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:49:25,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:49:22" (1/3) ... [2024-11-12 20:49:25,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d5d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:49:25, skipping insertion in model container [2024-11-12 20:49:25,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:49:23" (2/3) ... [2024-11-12 20:49:25,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d5d4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:49:25, skipping insertion in model container [2024-11-12 20:49:25,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:49:25" (3/3) ... [2024-11-12 20:49:25,602 INFO L112 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-12 20:49:25,616 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:49:25,616 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 20:49:25,616 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:49:25,736 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 20:49:25,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 344 transitions, 695 flow [2024-11-12 20:49:25,824 INFO L124 PetriNetUnfolderBase]: 133/368 cut-off events. [2024-11-12 20:49:25,824 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:49:25,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 368 events. 133/368 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1063 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 287. Up to 6 conditions per place. [2024-11-12 20:49:25,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 344 transitions, 695 flow [2024-11-12 20:49:25,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 342 transitions, 688 flow [2024-11-12 20:49:25,845 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:49:25,851 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;@37854494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:49:25,851 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-12 20:49:25,862 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:49:25,862 INFO L124 PetriNetUnfolderBase]: 21/67 cut-off events. [2024-11-12 20:49:25,862 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:49:25,862 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:25,863 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:25,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:49:25,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash -775333675, now seen corresponding path program 1 times [2024-11-12 20:49:25,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:25,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252294695] [2024-11-12 20:49:25,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:25,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:26,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:26,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252294695] [2024-11-12 20:49:26,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252294695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:26,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:26,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:49:26,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632503468] [2024-11-12 20:49:26,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:26,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 20:49:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:26,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 20:49:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 20:49:26,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-12 20:49:26,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 342 transitions, 688 flow. Second operand has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:26,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:26,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-12 20:49:26,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:26,733 INFO L124 PetriNetUnfolderBase]: 1272/3162 cut-off events. [2024-11-12 20:49:26,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:49:26,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5504 conditions, 3162 events. 1272/3162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20579 event pairs, 970 based on Foata normal form. 1064/3851 useless extension candidates. Maximal degree in co-relation 5406. Up to 2338 conditions per place. [2024-11-12 20:49:26,754 INFO L140 encePairwiseOnDemand]: 253/344 looper letters, 158 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2024-11-12 20:49:26,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 251 transitions, 822 flow [2024-11-12 20:49:26,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 20:49:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-12 20:49:26,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 435 transitions. [2024-11-12 20:49:26,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6322674418604651 [2024-11-12 20:49:26,770 INFO L175 Difference]: Start difference. First operand has 222 places, 342 transitions, 688 flow. Second operand 2 states and 435 transitions. [2024-11-12 20:49:26,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 251 transitions, 822 flow [2024-11-12 20:49:26,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 251 transitions, 822 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:49:26,778 INFO L231 Difference]: Finished difference. Result has 223 places, 251 transitions, 506 flow [2024-11-12 20:49:26,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=506, PETRI_PLACES=223, PETRI_TRANSITIONS=251} [2024-11-12 20:49:26,784 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 1 predicate places. [2024-11-12 20:49:26,784 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 251 transitions, 506 flow [2024-11-12 20:49:26,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.0) internal successors, (198), 2 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:26,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:26,785 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:26,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:49:26,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:49:26,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:26,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1691419316, now seen corresponding path program 1 times [2024-11-12 20:49:26,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:26,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756009588] [2024-11-12 20:49:26,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:26,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:26,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:26,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756009588] [2024-11-12 20:49:26,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756009588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:26,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:26,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:49:26,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892562651] [2024-11-12 20:49:26,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:26,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:49:26,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:26,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:49:26,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:49:26,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-12 20:49:26,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 251 transitions, 506 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:26,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:26,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-12 20:49:26,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:27,439 INFO L124 PetriNetUnfolderBase]: 1272/3165 cut-off events. [2024-11-12 20:49:27,439 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:49:27,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5511 conditions, 3165 events. 1272/3165 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20555 event pairs, 970 based on Foata normal form. 0/2790 useless extension candidates. Maximal degree in co-relation 5507. Up to 2334 conditions per place. [2024-11-12 20:49:27,449 INFO L140 encePairwiseOnDemand]: 341/344 looper letters, 159 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2024-11-12 20:49:27,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 254 transitions, 834 flow [2024-11-12 20:49:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:49:27,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:49:27,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2024-11-12 20:49:27,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4273255813953488 [2024-11-12 20:49:27,451 INFO L175 Difference]: Start difference. First operand has 223 places, 251 transitions, 506 flow. Second operand 3 states and 441 transitions. [2024-11-12 20:49:27,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 254 transitions, 834 flow [2024-11-12 20:49:27,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 254 transitions, 834 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:49:27,458 INFO L231 Difference]: Finished difference. Result has 226 places, 252 transitions, 518 flow [2024-11-12 20:49:27,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=226, PETRI_TRANSITIONS=252} [2024-11-12 20:49:27,458 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 4 predicate places. [2024-11-12 20:49:27,458 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 252 transitions, 518 flow [2024-11-12 20:49:27,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:27,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:27,459 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:27,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:49:27,459 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:49:27,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:27,460 INFO L85 PathProgramCache]: Analyzing trace with hash -220822801, now seen corresponding path program 1 times [2024-11-12 20:49:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995270348] [2024-11-12 20:49:27,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:27,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:27,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:27,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995270348] [2024-11-12 20:49:27,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995270348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:49:27,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248978923] [2024-11-12 20:49:27,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:27,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:27,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:49:27,595 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) [2024-11-12 20:49:27,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 20:49:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:27,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 20:49:27,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:49:27,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:27,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:49:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:49:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248978923] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 20:49:27,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-12 20:49:27,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-12 20:49:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039216995] [2024-11-12 20:49:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:27,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:49:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:49:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:49:27,796 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-12 20:49:27,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 252 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:27,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:27,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-12 20:49:27,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:28,236 INFO L124 PetriNetUnfolderBase]: 1272/3166 cut-off events. [2024-11-12 20:49:28,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:49:28,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5520 conditions, 3166 events. 1272/3166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20485 event pairs, 970 based on Foata normal form. 0/2792 useless extension candidates. Maximal degree in co-relation 5514. Up to 2326 conditions per place. [2024-11-12 20:49:28,249 INFO L140 encePairwiseOnDemand]: 340/344 looper letters, 157 selfloop transitions, 3 changer transitions 0/253 dead transitions. [2024-11-12 20:49:28,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 253 transitions, 840 flow [2024-11-12 20:49:28,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:49:28,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:49:28,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2024-11-12 20:49:28,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4253875968992248 [2024-11-12 20:49:28,251 INFO L175 Difference]: Start difference. First operand has 226 places, 252 transitions, 518 flow. Second operand 3 states and 439 transitions. [2024-11-12 20:49:28,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 253 transitions, 840 flow [2024-11-12 20:49:28,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 253 transitions, 838 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:49:28,255 INFO L231 Difference]: Finished difference. Result has 229 places, 253 transitions, 534 flow [2024-11-12 20:49:28,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=229, PETRI_TRANSITIONS=253} [2024-11-12 20:49:28,256 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 7 predicate places. [2024-11-12 20:49:28,256 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 253 transitions, 534 flow [2024-11-12 20:49:28,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:28,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:28,256 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:28,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 20:49:28,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:28,461 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:49:28,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:28,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1085362613, now seen corresponding path program 1 times [2024-11-12 20:49:28,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:28,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893898906] [2024-11-12 20:49:28,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:28,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:49:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:28,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893898906] [2024-11-12 20:49:28,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893898906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:49:28,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606234798] [2024-11-12 20:49:28,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:28,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:28,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:49:28,607 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) [2024-11-12 20:49:28,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 20:49:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:28,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-12 20:49:28,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:49:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:49:28,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:49:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 20:49:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606234798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:49:28,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:49:28,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 6] total 10 [2024-11-12 20:49:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654512975] [2024-11-12 20:49:28,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:49:28,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 20:49:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 20:49:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-12 20:49:28,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 344 [2024-11-12 20:49:28,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 253 transitions, 534 flow. Second operand has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:28,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:28,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 344 [2024-11-12 20:49:28,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:29,770 INFO L124 PetriNetUnfolderBase]: 1278/3215 cut-off events. [2024-11-12 20:49:29,770 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-12 20:49:29,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5619 conditions, 3215 events. 1278/3215 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20497 event pairs, 970 based on Foata normal form. 3/2845 useless extension candidates. Maximal degree in co-relation 5612. Up to 2319 conditions per place. [2024-11-12 20:49:29,780 INFO L140 encePairwiseOnDemand]: 338/344 looper letters, 187 selfloop transitions, 8 changer transitions 0/288 dead transitions. [2024-11-12 20:49:29,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 288 transitions, 1012 flow [2024-11-12 20:49:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 20:49:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 20:49:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 849 transitions. [2024-11-12 20:49:29,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3525747508305648 [2024-11-12 20:49:29,782 INFO L175 Difference]: Start difference. First operand has 229 places, 253 transitions, 534 flow. Second operand 7 states and 849 transitions. [2024-11-12 20:49:29,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 288 transitions, 1012 flow [2024-11-12 20:49:29,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 288 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:49:29,786 INFO L231 Difference]: Finished difference. Result has 237 places, 257 transitions, 580 flow [2024-11-12 20:49:29,786 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=580, PETRI_PLACES=237, PETRI_TRANSITIONS=257} [2024-11-12 20:49:29,787 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 15 predicate places. [2024-11-12 20:49:29,787 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 257 transitions, 580 flow [2024-11-12 20:49:29,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:29,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:29,788 INFO L206 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] [2024-11-12 20:49:29,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 20:49:29,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-12 20:49:29,993 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:49:29,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1769595098, now seen corresponding path program 2 times [2024-11-12 20:49:29,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:29,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369896500] [2024-11-12 20:49:29,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:29,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 20:49:30,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:30,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369896500] [2024-11-12 20:49:30,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369896500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 20:49:30,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394813880] [2024-11-12 20:49:30,553 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 20:49:30,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:30,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:49:30,555 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) [2024-11-12 20:49:30,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 20:49:31,043 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 20:49:31,043 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 20:49:31,047 INFO L256 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-12 20:49:31,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 20:49:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 20:49:31,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 20:49:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 20:49:31,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394813880] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 20:49:31,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 20:49:31,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2024-11-12 20:49:31,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022859114] [2024-11-12 20:49:31,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 20:49:31,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 20:49:31,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:31,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 20:49:31,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-12 20:49:35,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-12 20:49:35,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 344 [2024-11-12 20:49:35,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 257 transitions, 580 flow. Second operand has 17 states, 17 states have (on average 94.58823529411765) internal successors, (1608), 17 states have internal predecessors, (1608), 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) [2024-11-12 20:49:35,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:35,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 344 [2024-11-12 20:49:35,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:49:37,765 INFO L124 PetriNetUnfolderBase]: 1282/3265 cut-off events. [2024-11-12 20:49:37,765 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-12 20:49:37,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5743 conditions, 3265 events. 1282/3265 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 20753 event pairs, 970 based on Foata normal form. 0/2880 useless extension candidates. Maximal degree in co-relation 5733. Up to 2329 conditions per place. [2024-11-12 20:49:37,777 INFO L140 encePairwiseOnDemand]: 332/344 looper letters, 206 selfloop transitions, 35 changer transitions 0/331 dead transitions. [2024-11-12 20:49:37,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 331 transitions, 1232 flow [2024-11-12 20:49:37,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-12 20:49:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-12 20:49:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2222 transitions. [2024-11-12 20:49:37,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2936046511627907 [2024-11-12 20:49:37,781 INFO L175 Difference]: Start difference. First operand has 237 places, 257 transitions, 580 flow. Second operand 22 states and 2222 transitions. [2024-11-12 20:49:37,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 331 transitions, 1232 flow [2024-11-12 20:49:37,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 331 transitions, 1228 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-12 20:49:37,787 INFO L231 Difference]: Finished difference. Result has 269 places, 289 transitions, 817 flow [2024-11-12 20:49:37,787 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=817, PETRI_PLACES=269, PETRI_TRANSITIONS=289} [2024-11-12 20:49:37,788 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 47 predicate places. [2024-11-12 20:49:37,788 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 289 transitions, 817 flow [2024-11-12 20:49:37,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 94.58823529411765) internal successors, (1608), 17 states have internal predecessors, (1608), 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) [2024-11-12 20:49:37,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:37,789 INFO L206 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] [2024-11-12 20:49:37,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 20:49:37,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 20:49:37,990 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-12 20:49:37,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:37,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2076993763, now seen corresponding path program 1 times [2024-11-12 20:49:37,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:37,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547438537] [2024-11-12 20:49:37,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:37,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:49:38,143 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:49:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:49:38,280 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:49:38,281 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:49:38,282 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-12 20:49:38,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-12 20:49:38,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-12 20:49:38,283 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-12 20:49:38,284 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-12 20:49:38,285 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-12 20:49:38,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:49:38,285 INFO L421 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-12 20:49:38,287 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 20:49:38,287 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 20:49:38,412 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 20:49:38,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 608 transitions, 1232 flow [2024-11-12 20:49:38,521 INFO L124 PetriNetUnfolderBase]: 243/672 cut-off events. [2024-11-12 20:49:38,521 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 20:49:38,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 672 events. 243/672 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2708 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 563. Up to 12 conditions per place. [2024-11-12 20:49:38,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 608 transitions, 1232 flow [2024-11-12 20:49:38,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 393 places, 608 transitions, 1232 flow [2024-11-12 20:49:38,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:49:38,543 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;@37854494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:49:38,543 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-12 20:49:38,552 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:49:38,552 INFO L124 PetriNetUnfolderBase]: 41/123 cut-off events. [2024-11-12 20:49:38,553 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 20:49:38,553 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:49:38,553 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:49:38,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, runErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, runErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-12 20:49:38,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:49:38,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1764158594, now seen corresponding path program 1 times [2024-11-12 20:49:38,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:49:38,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387332260] [2024-11-12 20:49:38,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:49:38,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:49:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:49:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:49:38,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:49:38,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387332260] [2024-11-12 20:49:38,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387332260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:49:38,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:49:38,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:49:38,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884186211] [2024-11-12 20:49:38,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:49:38,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 20:49:38,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:49:38,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 20:49:38,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 20:49:38,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 608 [2024-11-12 20:49:38,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 608 transitions, 1232 flow. Second operand has 2 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:49:38,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:49:38,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 608 [2024-11-12 20:49:38,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand